Long-axis rotor storage device and working method thereof

Abstract

The present invention discloses a long-axis rotor storage device, including a base, a storage box, an adjustable support assembly, a turning mechanism, an air charging assembly, a pressure gauge, a box exhaust valve, and a breathing valve. The storage box is installed on the base, the adjustable support assembly is arranged inside the storage box and is slidably connected to the inner bottom surface thereof, the long-axis rotor is horizontally installed on the adjustable support assembly, the turning mechanism is installed on the base on one side of the storage box, one end of the turning mechanism is penetrated through the side of the storage box to the inside thereof and faces one end of the long-axis rotor, the turning mechanism and the air charging assembly are respectively connected to an air source A, the air charging assembly is connected to the inside of the storage box, the box exhaust valve and the breathing valve are installed at intervals on the upper part of the storage box and are respectively connected to the inside thereof, and the pressure gauge is installed on the storage box. The present invention also discloses a working method. The present invention solves the problem that precision equipment such as rotors are corroded and rusted in a humid environment and are difficult to preserve, and there is no need to specially set up a special storage site for it, thereby reducing storage costs.

Description

Technical Field

[0001] The invention relates to a large-scale precision rotating component storage device, in particular to a long-axis rotor storage device and a working method thereof. Background Art

[0002] In the actual production process, large equipment rotors are of various types and quantities, with high precision requirements and harsh storage environment requirements. If placed in the air, it is easy for the metal to rust and corrode, affecting the service life of the rotor, and it is not convenient to transport. In particular, if the rotor with a long shaft is not properly stored, it is easy for the rotor to be completely deformed, resulting in irreversible permanent damage.

[0003] Most of the current rotor storage equipment has a simple structure, usually only considering the device itself to be firmly fixed, and there is no good solution to the problem of long-term storage of rotors in harsh on-site environments, which has become a major problem that troubles equipment managers. Existing storage equipment also has the following problems:

[0004] 1. It is impossible to monitor the pressure inside the equipment in real time and automatically replenish it, so the pressure inside the equipment cannot be guaranteed to be stable.

[0005] 2. The rotor cannot be turned inside the equipment, especially the long-axis rotor, which is prone to rotor bending and deformation.

[0006] 3. The device cannot know the storage status of its internal rotor from the outside. Summary of the invention

[0007] Purpose of the invention: In view of the above problems, the purpose of the present invention is to provide a long-axis rotor storage device to solve the practical needs of demanding storage conditions for precision equipment such as large-scale unit rotors, ensure that the rotor is always in a dry and air-isolated environment during storage, prevent rust and corrosion, and effectively prevent the rotor from bending and deforming due to its own gravity when it is stationary for a long time. And provide its working method.

[0008] Technical solution: A long-axis rotor storage device, including a base, a storage box, an adjustable support assembly, a turning mechanism, an inflation assembly, a pressure gauge, a box exhaust valve, and a breathing valve. The storage box is a sealed cavity installed on the base. There is at least one group of adjustable support assemblies, which are arranged in parallel and at intervals inside the storage box and are slidably connected to the inner bottom surface of the storage box. Each group of adjustable support assemblies is used to horizontally store a long-axis rotor, and the long-axis rotor is rotatably connected to the adjustable support assembly; at least one turning mechanism is installed on the base on one side of the storage box and corresponds to the adjustable support assembly one by one, one end of which extends into the storage box and is coaxially connected to the long-axis rotor on the corresponding adjustable support assembly; the inflation assembly is arranged on one side of the turning mechanism and is connected to the interior of the storage box; the turning mechanism and the inflation assembly are respectively connected to the air source A, and the pressure gauge, the box exhaust valve, and the breathing valve are installed at intervals on the top of the storage box and are respectively connected to the interior of the storage box.

[0009] Furthermore, two adjustable support assemblies are formed into a group, and the adjustable support assemblies include a rotor holder and a rotor clamp. At least one slide rail is arranged on the inner bottom surface of the storage box, and two rotor holders are arranged on each slide rail, which are arranged on the slide rail at intervals. A rotor clamp is installed on the upper end of the rotor holder, and the rotor clamp has a rolling bearing. A slider is installed on the lower end of the rotor holder, and the slider is slidably installed on the slide rail.

[0010] The two ends of the long-axis rotor are rotatably connected to two rotor clamps respectively, and the long-axis rotor is driven to maintain a low-speed rotation state through a turning mechanism, thereby overcoming the influence of gravity and preventing the long-axis rotor from bending and deforming due to long-term storage.

[0011] Preferably, the cross section of the slide rail is an I-shape, the cross section of the slider is a T-shaped notch, and the slider cooperates with the slide rail so that the upper portion of the slide rail is placed in the T-shaped notch of the slider.

[0012] Furthermore, the turning mechanism includes a turning bracket, a turning shaft seal, a pneumatic turning motor, and a turning ratchet assembly. The turning bracket is installed on a base on one side of the storage box. The pneumatic turning motor is connected to the turning ratchet assembly and installed on the turning bracket together, wherein the other end of the turning ratchet assembly extends into the storage box through the turning shaft seal, and the air inlet of the pneumatic turning motor is connected to the air source A, and the air outlet is connected to the inside of the storage box.

[0013] Optimally, the turning wheel ratchet assembly consists of a meshing ratchet and a pawl, the pawl is connected to a connecting rod and a connecting shaft, the other end of the connecting shaft extends out of the storage box and is connected to the pneumatic turning wheel motor, a rotor shaft mounting position B is provided in the center of the ratchet, and one end of the long axis rotor is installed in the rotor shaft mounting position B.

[0014] Furthermore, the inflation component includes a gas compensation pipeline, an air source control ball valve, and a pressure regulating valve, wherein the inlet of the air source control ball valve is connected to the air source A, and the outlet of the air source control ball valve is divided into two paths, one of which is connected to the gas compensation pipeline and the air supply inlet hole opened on the side wall of the storage box through the pressure regulating valve, and the other is connected to the turning mechanism to connect the turning mechanism to the air source A, and the pressure regulating valve is connected to the pressure gauge signal.

[0015] Furthermore, the storage box includes a metal rectangular box body, an elliptical box cover, a window, a handle, a lifting ear, and a sealing gasket. The bottom of the metal rectangular box body is connected to the base, the elliptical box cover is connected to the upper part of the metal rectangular box body, and a sealing gasket is arranged between the connecting surfaces of the two. A sealed window is respectively provided on the two opposite side walls of the metal rectangular box body, and a handle is respectively installed on the other two opposite side walls. The top of the elliptical box cover is an elliptical curved surface, on which two lifting ears are respectively installed at 45° relative intervals. A humidity display meter is also installed on the elliptical box cover.

[0016] Optimally, the base includes a universal pulley and a box support platform, a plurality of universal pulleys are installed at intervals on the bottom of the box support platform, and the storage box and the turning mechanism are respectively installed on the upper surface of the box support platform.

[0017] Optimally, the box exhaust valve is a ball valve, the breathing valve is a micro-positive pressure self-breathing valve, and the gas of the gas source A is nitrogen.

[0018] A working method of the above-mentioned long-axis rotor storage device comprises the following steps:

[0019] Step 1: Open the inflation assembly and fill the storage box with gas until the pressure gauge shows 0.15MPa, then close the inflation assembly, open the exhaust valve of the box to release the pressure, repeat the operation several times to replace the humid air in the storage box with the gas source A, and detect the gas humidity at the outlet of the exhaust valve of the box through the humidity detector. If it is less than 10%, it is considered as qualified and the replacement is stopped;

[0020] Step 2: Release the pressure through the exhaust valve of the box again, and close the box after the pressure in the storage box drops to 0.020MPa;

[0021] Step 3: Enable the breathing valve and control the discharge pressure at 0.060~0.1MPa;

[0022] Step 4: Start the turning mechanism, which drives the long-axis rotor to rotate on the adjustable support assembly at a speed of 2 to 3 r / min;

[0023] Step 5: Set the inflation pressure of the inflation component at 0.025-0.060 MPa, and monitor the pressure gauge in real time. When a large amount of gas leakage occurs in the storage box, the inflation component starts to replenish the gas in the storage box.

[0024] Beneficial effects: Compared with the prior art, the advantages of the present invention are:

[0025] 1. It solves the problem that precision equipment such as rotors are corroded and rusted in humid environments and are difficult to store. There is no need to set up a special storage site for it, which reduces storage costs;

[0026] 2. The long-axis rotor is kept in a low-speed rotation state through the turning mechanism, thereby overcoming the influence of gravity and solving the problem that large-size long-axis rotors are prone to bending and deformation due to long storage time;

[0027] 3. The pneumatic structure is used instead of the electric turning structure to solve the high explosion-proof level requirements of petrochemical enterprises and achieve intrinsic safety.

[0028] 4. Through the regulating function of the breathing valve, the isolation gas is automatically replenished and discharged, which solves the problem of low pressure of isolation gas during long-term storage, while saving the amount of isolation gas and achieving the effect of reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the present invention;

[0030] Figure 2 It is a schematic diagram of the top view of the structure of a metal rectangular box;

[0031] Figure 3 is a schematic diagram of the structure of the rotor retainer;

[0032] Figure 4 It is a structural schematic diagram of the turning ratchet assembly. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0034] A long-axis rotor storage device, such as Figures 1 to 4 As shown, it includes a base, a storage box, an adjustable support assembly, a turning mechanism, an inflation assembly, a pressure gauge 10, a box exhaust valve 11, a breathing valve 12, and a humidity display meter 13. The adjustable support assembly includes a rotor holder 21 and a rotor clamp 22. The turning mechanism includes a turning bracket 15, a turning shaft seal 18, a pneumatic turning motor 19, and a turning ratchet assembly 23. The turning ratchet assembly 23 includes a ratchet 231, a pawl 232, a connecting rod 233, and a connecting shaft 234. The inflation assembly includes Gas compensation pipeline 16, gas source control ball valve 20, pressure regulating valve 25, the storage box includes a metal rectangular box body 1, an elliptical box cover 2, a window 3, a handle 4, a lifting ear 6, a sealing gasket 7, the base includes a universal pulley 5, a box support platform 14, the box exhaust valve 11 is a ball valve, the breathing valve 12 is a micro-positive pressure self-breathing valve, the pressure regulating valve 25 is a self-supporting pressure regulating valve, the pressure gauge 10 is a micro-pressure gauge, and the adjustable support assembly and the turning mechanism are in a one-to-one correspondence, and there is at least one of them.

[0035] A plurality of universal pulleys 5 are installed at intervals at the bottom of the box support platform 14, the storage box is installed on the box support platform 14, the bottom of the metal rectangular box 1 is connected to the box support platform 14, the elliptical box cover 2 is connected to the upper part of the metal rectangular box 1 by a plurality of fastening bolts, and a sealing gasket 7 is provided between the connecting surfaces of the two, a sealed window 3 is provided on the opposite side surfaces of the metal rectangular box 1, and a handle 4 is installed on the other opposite side. The top of the elliptical box cover 2 is an elliptical curved surface, on which two ears 6 are installed at 45° intervals, respectively. The pressure gauge 10, the box exhaust valve 11, the breathing valve 12, and the humidity display meter 13 are respectively installed on the elliptical box cover 2, and the humidity display meter 13 is used to display the humidity in the box to ensure that the box is dry and prevent moisture and rust.

[0036] The adjustable support assembly is arranged inside the metal rectangular box 1. When the number of adjustable support assemblies is two or more, they are arranged in parallel and at intervals. Each group of adjustable support assemblies can horizontally store a long-axis rotor. Each group of adjustable support assemblies is slidably connected to the inner bottom surface of the metal rectangular box 1 through a slide rail 24. Each group of adjustable support assemblies is provided with two rotor retaining frames 21, which are arranged on the slide rail 24 at intervals. A rotor clamp 22 is installed on the upper end of each rotor retaining frame 21. The rotor clamp 22 has a rolling bearing. The two ends of the long-axis rotor are rotatably connected to the two rotor clamps 22 through corresponding rolling bearings. The structure of the rotor clamp 22 is similar to that of a bearing seat equipped with a rolling bearing. While ensuring that the long-axis rotor is horizontally placed on the adjustable support assembly, it does not affect the subsequent turning of the long-axis rotor.

[0037] The lower end of the rotor holder 21 is provided with a slider 211, which is slidably mounted on the slide rail 24. The cross section of the slide rail 24 is an I-shaped section, and the cross section of the slider 211 is a T-shaped notch. The slider 211 cooperates with the slide rail 24 so that the upper part of the slide rail 24 is placed in the T-shaped notch of the slider 211. The cooperation structure of the slider 211 and the slide rail 24 ensures that the rotor holder 21 slides normally on the slide rail 24 and also ensures its sliding stability. According to the length of the long-axis rotor, the spacing between the two rotor holders is adjusted to adapt to long-axis rotors of various lengths.

[0038] The turning mechanism is installed on the box support platform 14 at one side of the storage box. The number of turning mechanisms is equal to the number of adjustable support components. The turning bracket 15 is installed on the base. The pneumatic turning motor 19 is connected with the turning ratchet assembly 23 and then installed on the turning bracket 15. The turning ratchet assembly 23 is passed through the storage box from one side. The connection between the two is sealed by the turning shaft seal 18. The turning shaft seal 18 can be a shaft sealing ring. In order to maintain the sealing of the box, the turning bracket 15 is a pneumatic bracket, which is used to support and fix the pneumatic turning motor 19 and the turning ratchet assembly 23.

[0039] The ratchet 231, the pawl 232, and the connecting rod 233 are arranged inside the storage box. The connecting shaft 234 is passed through a side of the storage box and sealed by the turning shaft seal 18. One end of the connecting shaft 234 is connected to the pneumatic turning motor 19, and the other end is connected to one end of the connecting rod 233. The pawl 232 is installed on the other end of the connecting rod 233. The ratchet 231 is coaxially connected to one end of a corresponding long-axis rotor. A rotor shaft mounting position B is provided in the center of the ratchet 231. One end of the long-axis rotor is installed in the rotor shaft mounting position B. The two can be connected by a key or a pin, and the ratchet 231 is meshed with the pawl 232. The size of the rotor shaft mounting position B is set according to the specifications of the long-axis rotor. Since the positions of the two rotor holders are adjustable, the connection between the ratchet and the long-axis rotor is convenient.

[0040] The air source control ball valve 20 is connected to the air source A, the gas of the air source A is nitrogen, and an air supply inlet hole 17 is opened on one side of the storage box. The air source control ball valve 20 is connected to the air supply inlet hole 17 through a gas compensation pipeline 16. A pressure regulating valve 25 is also installed on the gas compensation pipeline 16. The pressure regulating valve 25 is connected to the signal of the pressure gauge 10. The pressure gauge 10 feeds back the pressure in the storage box to control the opening and closing of the pressure regulating valve 25, thereby realizing automatic air supply to the storage box. A controller can be installed to realize the automatic opening and closing of the pressure regulating valve 25; the air inlet of the pneumatic turning motor 19 is connected to the air source control ball valve 20 with a metal hose, and is connected to the air source A through the air source control ball valve 20 to control the air intake flow and further control the turning speed. The air outlet of the pneumatic turning motor 19 is connected to the air supply inlet hole 17. The pressure regulating valve 25 controls the pressure balance in the box, and the air source A replenishes air into the box through the air source control ball valve 20, the pressure regulating valve 25, and the air replenishment inlet hole 17 in sequence.

[0041] The manufacturing requirements of this equipment are as follows:

[0042] 1. Design the size of the storage device according to the specific size of the equipment being loaded.

[0043] 2. The sealing surface roughness is required to be Ra = 2.5 ~ 5μm.

[0044] 3. Assembly of manufacturing equipment and accessories.

[0045] 4. Select sealing surface gasket according to GB9126.1-88.

[0046] 5. Carry out air tightness test with the test pressure being 1.15 times of the design pressure and no leakage.

[0047] The working method of the long-axis rotor storage device comprises the following steps:

[0048] Step 1: Open the air source control ball valve 20 to fill the storage box with nitrogen until the pressure gauge shows 0.15MPa, then close the air source control ball valve 20, open the box exhaust valve 11 to release the pressure, repeat the operation several times to replace the wet air in the storage box with nitrogen, and detect the gas humidity at the outlet of the box exhaust valve 11 through the humidity detector. If it is less than 10%, it is considered that the replacement is qualified and the replacement is stopped.

[0049] Step 2: Release the pressure through the exhaust valve of the box again, and close the box after the pressure in the storage box drops to 0.020MPa;

[0050] Step 3: Enable the breathing valve 12 and control the discharge pressure at 0.060-0.1 MPa.

[0051] Step 4: Check the connecting pipe between the pressure regulating valve and the pressure gauge to confirm there is no leakage.

[0052] Step 5: Start the turning mechanism, open the air source control ball valve, start the pneumatic turning motor, and rotate the ratchet wheel through the sequential transmission of the connecting shaft, connecting rod, and pawl, thereby driving the corresponding long-axis rotor to rotate at a speed of 2 to 3 r / min.

[0053] Step 6: Set the pressure of the pressure regulating valve 25 to between 0.025 and 0.060 MPa, thereby ensuring that the pressure setting value of the pressure regulating valve 25 is less than the pressure setting value of the breathing valve 12 .

[0054] Step seven: Under normal conditions, the long-axis rotor maintains a low-speed rotation state, and the exhaust of the pneumatic turning motor 19 enters the storage box to compensate for possible pressure losses. At this time, the pressure regulating valve 25 is in a closed state; when a large amount of leakage occurs in the storage box, the pressure gauge 10 feedbacks a signal, and the pressure regulating valve 25 opens to replenish air in the storage box. Here, when a large amount of nitrogen leaks in the storage box and its internal pressure is less than 0.025MPa, the pressure regulating valve 25 will automatically open to replenish air in the box.

[0055] The coordinated air supply form of the pneumatic turning motor 19 and the pressure regulating valve 25 can effectively save nitrogen consumption.

Claims

1. A long-axis rotor storage device, characterized in that: The invention comprises a base, a storage box, an adjustable support assembly, a turning mechanism, an air charging assembly, a pressure gauge (10), a box exhaust valve (11), and a breathing valve (12). The storage box is a closed cavity installed on the base. The adjustable support assembly is provided with at least one group, which is arranged in parallel and spaced apart inside the storage box and is slidably connected to the inner bottom surface thereof. Each group of adjustable support assemblies is used to horizontally store a long-axis rotor, and the long-axis rotor is rotatably connected to the adjustable support assembly. At least one turning mechanism is installed on the base on one side of the storage box and corresponds to the adjustable support assembly one by one. One end of the turning mechanism extends into the storage box and is coaxially connected to the long-axis rotor on the corresponding adjustable support assembly. The air charging assembly is arranged on one side of the turning mechanism and is connected to the inside of the storage box. The turning mechanism and the air charging assembly are respectively connected to an air source A. The pressure gauge (10), the box exhaust valve (11), and the breathing valve (12) are installed at intervals on the top of the storage box and are respectively connected to the inside of the storage box. The turning mechanism comprises a turning support (15), a turning shaft seal (18), a pneumatic turning motor (19), and a turning ratchet assembly (23), wherein the turning support (15) is mounted on a base at one side of a storage box, the pneumatic turning motor (19) is connected to the turning ratchet assembly (23) and is mounted on the turning support (15), wherein the other end of the turning ratchet assembly (23) extends into the storage box through the turning shaft seal (18), the air inlet of the pneumatic turning motor (19) is communicated with an air source A, and the air outlet is communicated with the interior of the storage box; The gas filling assembly comprises a gas compensation pipeline (16), a gas source control ball valve (20), and a pressure regulating valve (25), wherein the inlet of the gas source control ball valve (20) is connected to the gas source A, and the outlet of the gas source control ball valve (20) is divided into two paths, one of which is connected to the gas compensation pipeline (16) and the gas filling inlet hole (17) provided on the side wall of the storage box through the pressure regulating valve (25), and the other of which is connected to the turning mechanism so that the turning mechanism is connected to the gas source A, and the pressure regulating valve (25) is connected to the signal of the pressure gauge (10).

2. A long-axis rotor storage device according to claim 1, characterized in that: Two adjustable support components form a group, and the adjustable support components include a rotor holder (21) and a rotor clamp (22). At least one slide rail (24) is arranged on the inner bottom surface of the storage box, and each slide rail (24) is provided with two rotor holders (21), which are arranged on the slide rail (24) in a matching manner and at intervals. The upper end of the rotor holder (21) is installed with a rotor clamp (22), and the rotor clamp (22) has a rolling bearing. The lower end of the rotor holder (21) is installed with a slider (211), and the slider (211) is slidably installed on the slide rail (24).

3. A long-axis rotor storage device according to claim 2, characterized in that: The cross section of the slide rail (24) is an I-shape, the cross section of the slider (211) is a T-shaped notch, and the slider (211) cooperates with the slide rail (24) so ​​that the upper part of the slide rail (24) is placed in the T-shaped notch of the slider (211).

4. The long-axis rotor storage device according to claim 1, characterized in that: The turning wheel ratchet assembly (23) comprises a meshing ratchet (231) and a pawl (232); the pawl (232) is connected to a connecting rod (233) and a connecting shaft (234); the other end of the connecting shaft (234) extends out of the storage box and is connected to the pneumatic turning wheel motor (19); a rotor shaft mounting position B is provided at the center of the ratchet (231); one end of the long-axis rotor is mounted in the rotor shaft mounting position B.

5. The long-axis rotor storage device according to claim 1, characterized in that: The storage box comprises a metal rectangular box body (1), an elliptical box cover (2), a viewing window (3), a handle (4), a lifting ear (6), and a sealing gasket (7). The bottom of the metal rectangular box body (1) is connected to the base, the elliptical box cover (2) is connected to the upper part of the metal rectangular box body (1), and a sealing gasket (7) is arranged between the connecting surfaces of the two. A sealed viewing window (3) is respectively arranged on two opposite side walls of the metal rectangular box body (1), and a handle (4) is respectively installed on the other two opposite side walls. The top of the elliptical box cover (2) is an elliptical curved surface, on which two lifting ears (6) are respectively installed at a relative interval of 45 degrees. A humidity display meter (13) is also installed on the elliptical box cover (2).

6. The long-axis rotor storage device according to claim 1, characterized in that: The base comprises a universal pulley (5) and a box support platform (14); a plurality of universal pulleys (5) are installed at intervals on the bottom of the box support platform (14); and the storage box and the turning mechanism are respectively installed on the upper surface of the box support platform (14).

7. The long-axis rotor storage device according to claim 1, characterized in that: The box exhaust valve (11) is a ball valve, the breathing valve (12) is a micro-positive pressure self-breathing valve, and the gas of the gas source A is nitrogen.

8. A method for operating the long-axis rotor storage device according to any one of claims 1 to 7, characterized in that The following steps are involved: Step 1: Open the gas charging assembly and fill the storage box with gas until the pressure gauge shows 0.15 MPa, then close the gas charging assembly and open the box exhaust valve (11) to release the pressure. Repeat the operation several times so that the humid air in the storage box is replaced by the gas source A. When the humidity of the gas at the outlet of the box exhaust valve (11) is less than 10% through the humidity detector, the replacement is considered qualified and the replacement is stopped. Step 2: Release the pressure again through the box exhaust valve (11) until the pressure in the storage box drops to 0.020 MPa and then close it; Step 3: Activate the breathing valve (12) to control the discharge pressure at 0.060-0.1 MPa; Step 4: Start the turning mechanism, which drives the long-axis rotor to rotate on the adjustable support assembly at a speed of 2 to 3 r / min; Step 5: Set the inflation pressure of the inflation component at 0.025-0.060 MPa, and monitor the pressure gauge in real time. When a large amount of gas leakage occurs in the storage box, the inflation component starts to replenish the gas in the storage box.

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