CN220037010U - Sealing device for axial air inlet type air compressor inlet bearing vibration measuring probe assembly - Google Patents
Sealing device for axial air inlet type air compressor inlet bearing vibration measuring probe assembly Download PDFInfo
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- CN220037010U CN220037010U CN202321043820.XU CN202321043820U CN220037010U CN 220037010 U CN220037010 U CN 220037010U CN 202321043820 U CN202321043820 U CN 202321043820U CN 220037010 U CN220037010 U CN 220037010U
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- China
- Prior art keywords
- air compressor
- vibration measuring
- gasket
- probe assembly
- measuring probe
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- 239000000523 sample Substances 0.000 title claims abstract description 78
- 238000007789 sealing Methods 0.000 title claims abstract description 62
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 4
- 238000012856 packing Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 abstract description 14
- 239000010687 lubricating oil Substances 0.000 abstract description 9
- 238000000926 separation method Methods 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Abstract
The utility model provides a sealing device of an axial air inlet type air compressor inlet bearing vibration measuring probe assembly, which comprises a vibration measuring probe assembly, wherein the vibration measuring probe assembly sequentially penetrates through an air compressor inlet pipeline and a bearing box shell arranged at an air compressor inlet, the sealing device also comprises a lock nut, a gasket and a sealing ring, the vibration measuring probe assembly comprises a reverse mounting probe, the lock nut is sleeved on the reverse mounting probe, the bearing box shell is provided with a vibration measuring probe assembly mounting hole, the vibration measuring probe assembly mounting hole is provided with a first end matched with the lock nut and a second end matched with the reverse mounting probe, the diameter of the first end is larger than that of the second end, the gasket and the sealing ring are both positioned in the first end, the outer diameters of the gasket and the sealing ring are both matched with the diameter of the first end, and the inner diameters of the gasket and the sealing ring are both matched with the diameter of the reverse mounting probe. The device can overcome the defects that the installation difficulty of the air inlet bearing vibration measuring instrument in the prior art is high, the rigidity requirement is strict, bearing lubricating oil is easy to leak into an air inlet chamber of the air compressor due to insufficient sealing, and the air separation device is seriously damaged and the production is stopped.
Description
Technical Field
The utility model relates to the technical field of air compressors, in particular to a sealing device of an inlet bearing vibration measuring probe assembly of an axial air compressor.
Background
The axial air inlet type air compressor is widely used in air separation devices according to the characteristic of reducing air pressure loss, but the axial air inlet type air compressor is arranged in an air inlet pipeline due to the fact that an inlet bearing vibration measuring instrument is installed in a bearing box of the axial air inlet type air compressor, the installation of the inlet bearing vibration measuring instrument can be completed only by sequentially penetrating through the air inlet pipeline and the bearing box of the air compressor, and the installation difficulty and the very strict rigidity requirement of the inlet bearing vibration measuring instrument are caused due to the fact that the distance between the outer wall of the air inlet pipeline and a monitoring point of the inlet bearing vibration measuring instrument of the air compressor is more than 800 mm. Meanwhile, negative pressure is arranged in an air inlet pipeline when the air compressor runs, if sealing work is not good during installation of an inlet bearing vibration measuring instrument of the air compressor, bearing lubricating oil in a bearing box is likely to leak into an air inlet chamber (air inlet pipeline) of the air compressor, and then the bearing lubricating oil is brought into an air separation device, oil entering the air separation device is frozen along with the reduction of the temperature of the air tank, so that a flow passage of the air tank is not smooth, the purity of oxygen and nitrogen is not high, and the air tank is likely to be blocked when serious, so that the air separation device is failed and stopped. How to effectively solve the installation and sealing problems of an inlet bearing vibration meter of an axial air inlet type air compressor, and avoid lubricating oil from entering an air inlet pipeline of the air compressor so as to ensure the safe and reliable operation of an air separation device is a problem to be solved urgently.
Disclosure of Invention
Therefore, the utility model provides the sealing device for the vibration measuring probe assembly of the inlet bearing of the axial air inlet type air compressor, which can overcome the defects that the installation difficulty of the vibration measuring instrument of the inlet bearing of the air compressor is high, the rigidity requirement is strict, bearing lubricating oil is easy to leak into an air inlet chamber of the air compressor due to insufficient sealing, and the fault and the production stopping risk of the air separation device are seriously caused.
In order to solve the problems, the utility model provides an axial air inlet type air compressor inlet bearing vibration measuring probe assembly sealing device, which comprises a vibration measuring probe assembly, wherein the vibration measuring probe assembly sequentially penetrates through an air inlet pipeline of an air compressor and a bearing box shell arranged at an air compressor inlet, the sealing device also comprises a lock nut, a gasket and a sealing ring, the vibration measuring probe assembly comprises a reverse mounting probe, the lock nut is sleeved on the reverse mounting probe, the bearing box shell is provided with a vibration measuring probe assembly mounting hole, the vibration measuring probe assembly mounting hole is provided with a first end matched with the lock nut and a second end matched with the reverse mounting probe, the diameter of the first end is larger than that of the second end, the gasket and the sealing ring are both positioned in the first end, the outer diameter of the gasket and the sealing ring are both matched with the diameter of the first end, and the inner diameter of the gasket and the sealing ring are both matched with the reverse mounting probe.
In some embodiments, the seal ring is located on a side proximate the second end and the washer is located on a side proximate the lock nut.
In some embodiments, the seal ring is an interference fit with the counter-mount probe.
In some embodiments, the gasket and the sealing ring are both O-rings, the gasket is made of steel, and the sealing ring is made of rubber.
In some embodiments, the gasket is a stainless steel material.
In some embodiments, the axial air intake air compressor inlet bearing vibration measurement probe assembly sealing device further comprises a gasket, the gasket being a solid circular gasket for sealing the port of the first end.
According to the sealing device for the vibration measuring probe assembly of the inlet bearing of the axial air inlet type air compressor, the locking nut is sleeved on the reverse mounting probe and is positioned at the top of the housing of the inlet bearing box of the air compressor, and the locking nut is matched with the internal threads of the mounting hole of the vibration measuring probe assembly on the housing of the inlet bearing box of the air compressor, so that the reverse mounting probe is fixed on the housing of the inlet bearing box of the air compressor. The gasket and the sealing ring are respectively arranged in the mounting hole of the air compressor inlet bearing box shell and sleeved on the reverse-installed probe, the gasket is positioned above the sealing ring, and the sealing ring is in interference fit with the reverse-installed probe. And (3) reasonably arranging sealing elements which are closely matched with each other to finish the installation and sealing of the vibration measuring probe assembly of the inlet bearing of the air compressor. The problems that the installation of the axial air inlet type air compressor inlet bearing vibration measuring probe assembly is difficult and the rigidity requirement of the probe assembly is high are effectively solved, and the major potential safety hazard that lubricating oil in a bearing box enters an air inlet pipeline of the air compressor due to improper installation is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a sealing device for an inlet bearing vibration measuring probe assembly of an axial air intake type air compressor in an embodiment of the utility model.
The reference numerals are expressed as:
1. an air compressor shaft; 2. a bearing housing; 3. an air inlet pipeline of the air compressor; 4. a vibration measuring probe assembly; 5. a lock nut; 6. a gasket; 7. and (3) sealing rings.
Detailed Description
Referring to fig. 1, according to an embodiment of the present utility model, an axial air intake type air compressor inlet bearing vibration measuring probe assembly sealing device is provided, which includes a vibration measuring probe assembly 4, the vibration measuring probe assembly 4 sequentially penetrates through an air compressor air intake pipeline 3 and a bearing box housing 2 disposed at an air compressor inlet, and further includes a lock nut 5, a gasket 6 and a sealing ring 7, the vibration measuring probe assembly 4 includes a reverse mounting probe, the lock nut 5 is sleeved on the reverse mounting probe, the bearing box housing 2 has a vibration measuring probe assembly mounting hole, the vibration measuring probe assembly mounting hole has a first end adapted to the lock nut 5, and a second end adapted to the reverse mounting probe, the diameter of the first end is larger than that of the second end, the gasket 6 and the sealing ring 7 are both disposed in the first end, and the outer diameters are both adapted to the diameter of the first end, and the inner diameters are both adapted to the reverse mounting probe.
Specifically, the mounting thread of the vibration measuring probe assembly 4 is generally 3/4NPT, and the lower end of the vibration measuring probe assembly, which is close to the shaft 1 of the air compressor, is an unthreaded part.
Specifically, the bottom of the vibration measuring probe assembly mounting hole of the bearing box shell 2 is not provided with threads, the diameter is D+7mm, and D is the outer diameter of the unthreaded part of the vibration measuring probe assembly 4; the upper part of the vibration measuring probe assembly mounting hole of the bearing box shell 2 is provided with threads, and the thread specification is as follows: m20×1.5 internal thread, which is adapted to the external thread of the lock nut 5.
Specifically, the sizes of the lock nut 5, the gasket 6 and the sealing ring 7 are set according to the size of the vibration measuring probe assembly mounting hole on the bearing box shell 2.
Preferably, the lock nut 5 has the following dimensions: the internal diameter is D+3mm, the bottom external diameter is the screw thread, the specification is: m20×1.5 external threads. The top is unthreaded, and the external diameter is: d+100mm. The external diameter of the top of the lock nut 5 is larger than that of the bottom thread part, so that the installation hole can be effectively covered, and a better sealing effect is achieved.
Preferably, the gasket 6 is dimensioned to: the inner diameter is D+3mm, the outer diameter is D+50mm, and the thickness is 4mm.
Preferably, the sealing ring 7 is sized to: the inner diameter is D-7mm, the outer diameter is D+50mm, and the thickness is 4mm.
In a specific embodiment, the sealing ring 7 is located on the side near the second end, and the gasket 6 is located on the side near the lock nut 5.
In a specific embodiment, the sealing ring 7 is in interference fit with the reverse-installed probe.
In a specific embodiment, the gasket 6 and the sealing ring 7 are both O-rings, the gasket 6 is made of steel, and the sealing ring 7 is made of rubber.
In a specific embodiment, the gasket 6 is made of stainless steel.
In a specific embodiment, the sealing device of the inlet bearing vibration measuring probe assembly of the axial air intake type air compressor further comprises a gasket, wherein the gasket is a solid circular gasket and is used for sealing the port of the first end.
The installation process of the sealing device comprises the following steps:
the lower part of the vibration measuring probe assembly 4 penetrates into the air inlet pipeline 3 of the air compressor, the locking nut 5, the gasket 6 and the sealing ring 7 are sequentially sleeved on the vibration measuring probe assembly 4, the vibration measuring probe assembly 4 penetrates through the inlet bearing box shell 2 of the air compressor, the gap voltage reaches about 10VDC by adjusting the vertical distance between the inner rod of the vibration measuring probe assembly 4 and the measured surface of the air compressor shaft 1, the installation of the vibration measuring probe assembly 4 is completed, and finally the locking nut 5 is screwed down, so that the sealing of lubricating oil in the bearing box of the air compressor is completed.
When the lubricating oil of the air compressor is in oil connection, the installation of the sealing device of the vibration measuring probe assembly of the inlet bearing of the air compressor does not need to be completed firstly, and only the gasket is placed in the installation hole of the vibration measuring probe assembly, the gasket is in interference fit with the installation hole, and the locking nut 5 is used for locking and fixing, so that the sealing of the lubricating oil in the bearing box of the air compressor can be completed.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model. The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (6)
1. The utility model provides an axial air inlet type air compressor machine entry bearing probe subassembly sealing device that shakes, includes probe subassembly (4) that shakes, probe subassembly (4) that shakes wears to establish air compressor machine air inlet line (3) and set up in bearing box casing (2) of air compressor machine entry in proper order, its characterized in that still includes lock nut (5), packing ring (6) and sealing washer (7), probe subassembly (4) that shakes including reverse dress probe, lock nut (5) cover is located reverse dress probe is last, bearing box casing (2) have probe subassembly mounting hole that shakes, probe subassembly mounting hole that shakes have with the first end of lock nut (5) adaptation, and with reverse dress probe adaptation second end, first end diameter is greater than the second end diameter, packing ring (6) with sealing washer (7) all are located in the first end, and its external diameter all with first end diameter adaptation, its internal diameter all with reverse dress probe adaptation.
2. The sealing device of the inlet bearing vibration measuring probe assembly of the axial air intake type air compressor according to claim 1, wherein the sealing ring (7) is positioned at one side close to the second end, and the gasket (6) is positioned at one side close to the locking nut (5).
3. The sealing device of the inlet bearing vibration measuring probe assembly of the axial air intake type air compressor according to claim 2, wherein the sealing ring (7) is in interference fit with the reverse-installed probe.
4. The sealing device of the axial air intake type air compressor inlet bearing vibration measuring probe assembly according to claim 1, wherein the gasket (6) and the sealing ring (7) are both O-shaped rings, the gasket (6) is made of steel, and the sealing ring (7) is made of rubber.
5. The sealing device of the inlet bearing vibration measuring probe assembly of the axial air intake type air compressor according to claim 4, wherein the gasket (6) is made of stainless steel.
6. The axial air intake air compressor inlet bearing vibration measurement probe assembly sealing device of claim 1, further comprising a gasket, the gasket being a solid circular gasket for sealing the port of the first end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321043820.XU CN220037010U (en) | 2023-05-05 | 2023-05-05 | Sealing device for axial air inlet type air compressor inlet bearing vibration measuring probe assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321043820.XU CN220037010U (en) | 2023-05-05 | 2023-05-05 | Sealing device for axial air inlet type air compressor inlet bearing vibration measuring probe assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220037010U true CN220037010U (en) | 2023-11-17 |
Family
ID=88726817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321043820.XU Active CN220037010U (en) | 2023-05-05 | 2023-05-05 | Sealing device for axial air inlet type air compressor inlet bearing vibration measuring probe assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220037010U (en) |
-
2023
- 2023-05-05 CN CN202321043820.XU patent/CN220037010U/en active Active
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