CN220168572U - Novel airtight structure of spiral screen centrifuge - Google Patents
Novel airtight structure of spiral screen centrifuge Download PDFInfo
- Publication number
- CN220168572U CN220168572U CN202321272151.3U CN202321272151U CN220168572U CN 220168572 U CN220168572 U CN 220168572U CN 202321272151 U CN202321272151 U CN 202321272151U CN 220168572 U CN220168572 U CN 220168572U
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- main shaft
- sealing
- airtight
- air
- novel
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- 238000007789 sealing Methods 0.000 claims abstract description 91
- 125000006850 spacer group Chemical group 0.000 claims abstract description 30
- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 210000004907 gland Anatomy 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 238000005524 ceramic coating Methods 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 14
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Abstract
The utility model discloses a novel airtight structure of a spiral screen centrifuge, which comprises a main shaft sealing sleeve, an airtight seat coaxially sleeved on the main shaft sealing sleeve, an air inlet arranged on the outer peripheral surface of the airtight seat, a connector rotatably arranged at the air inlet, an air passage arranged in the airtight seat, an airtight gland detachably arranged at the left end of the airtight seat, a left sealing spacer bush and a right sealing spacer bush embedded in the airtight seat, a main shaft sealing ring embedded between the left sealing spacer bush and the right sealing spacer bush, at least 1 sealing ring sleeved on the main shaft sealing sleeve, the sealing spacer bush and the main shaft sealing ring are sleeved on the main shaft sealing sleeve, a plurality of air holes are radially and penetratingly arranged on the outer peripheral surface of the main shaft sealing ring, the air inlet is communicated with the air passage, and the air passage is communicated with the air holes. The sealing structure disclosed by the utility model has good sealing performance and solves the problem of main shaft corrosion caused by poor sealing effect.
Description
Technical Field
The utility model relates to the technical field of centrifuges, in particular to a novel airtight structure of a spiral screen centrifuge.
Background
The spiral screen centrifuge is widely applied to the pharmaceutical industry and the chemical industry, and the mechanical sealing effect of the main shaft part of the original spiral screen centrifuge is poor due to the complex working condition, so that the main shaft can be corroded, and the maintenance cost is high. Therefore, a new technical solution is needed to solve the above technical problems.
Disclosure of Invention
The utility model aims to provide a novel air-tight structure of a spiral screen centrifuge, which has good tightness and solves the problem of main shaft corrosion caused by poor sealing effect.
In order to achieve the technical purpose and meet the technical requirements, the utility model adopts the technical scheme that: the utility model provides a novel airtight structure of spiral screen centrifuge, its characterized in that, is in including main shaft seal cover, coaxial sleeve is in airtight seat on the main shaft seal cover, set up the air inlet of airtight seat outer peripheral face, establish soon the joint of air inlet department, set up air flue in the airtight seat, can dismantle the setting be in airtight gland in airtight seat left end, inlay establish left seal spacer and right seal spacer in the airtight seat, inlay establish main shaft sealing washer, at least 1 cover between left seal spacer and the right seal spacer establish the sealing ring on the main shaft seal cover, seal spacer and main shaft sealing snare are established on the main shaft seal cover, main shaft sealing washer outer peripheral face is radially run through along it and is provided with a plurality of gas pockets, the air inlet with the air flue intercommunication, the air flue with the gas pocket intercommunication.
As a preferable technical scheme, the outer peripheral surface of the main shaft sealing sleeve is provided with a smooth coating.
As a preferable technical scheme, the air holes are of a stepped hole structure, and the diameters of the air holes gradually decrease from outside to inside.
As an optimal technical scheme, the outer peripheral surface of the main shaft sealing sleeve is provided with a serrated oil throwing groove.
As the preferable technical scheme, the right end of the airtight seat is provided with 2 sealing grooves, and each sealing groove is embedded with 1O-shaped sealing ring.
As a preferable technical scheme, the air passage is of an annular structure.
As the preferable technical scheme, the number of the sealing rings is 2, and 2 sealing rings are arranged at intervals on the left side of the left sealing spacer sleeve.
As a preferred technical scheme, the smooth coating is a ceramic coating.
As an optimal technical scheme, the main shaft sealing ring is made of stainless steel.
As an optimal technical scheme, the sealing spacer bush is made of graphite polytetrafluoroethylene.
The beneficial effects of the utility model are as follows:
1) The joint is connected with compressed air, the compressed air enters the air passage from the air inlet, then enters the air hole to form air seal, the sealing effect is obviously improved, the main shaft is effectively prevented from being damaged by powder, the sealing ring plays an auxiliary sealing role, and the sealing effect is better.
2) Preferably, the smooth coating improves the sealing performance, the formed air seal is good in effect, abrasion is reduced, and further preferably, the smooth coating is a ceramic coating, and the surface is good in smoothness and good in abrasion resistance.
3) Preferably, the stepped hole has better air inlet effect, so that the air sealing performance is improved.
4) Preferably, the oil slinging groove plays a role in slinging oil and preventing oil leakage.
5) Preferably, the sealing performance is improved when the airtight seat is mounted to other components.
6) Preferably, the air passage of the annular structure has better air inlet effect.
7) Preferably, the graphite polytetrafluoroethylene material has good chemical stability, good self-lubricity and good wear resistance.
Drawings
FIG. 1 is a block diagram of one embodiment provided by the present utility model.
In fig. 1, a main shaft sealing sleeve; 101. a smooth coating; 102. an oil slinger; 2. an airtight seat; 201. an air inlet; 202. an airway; 203. sealing grooves; 204. an O-ring seal; 3. a joint; 4. sealing the gland; 5. a left sealing spacer; 6. a right sealing spacer; 7. a spindle seal ring; 701. air holes; 8. and (3) a sealing ring.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if the terms "head", "tail", "top", "bottom", "left", "right", "front", "rear", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, they are merely for convenience in describing the present utility model, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration, and are not to be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those of ordinary skill in the art according to specific circumstances.
Referring to fig. 1, the utility model provides a novel airtight structure of a spiral screen centrifuge, which comprises a main shaft sealing sleeve 1, an airtight seat 2 coaxially sleeved on the main shaft sealing sleeve 1, an air inlet 201 arranged on the outer peripheral surface of the airtight seat 2, a joint 3 spirally arranged at the air inlet 201, an air passage 202 arranged in the airtight seat 2, an airtight gland 4 detachably arranged at the left end of the airtight seat 2, a left sealing spacer 5 and a right sealing spacer 6 embedded in the airtight seat 2, a main shaft sealing ring 7 embedded between the left sealing spacer 5 and the right sealing spacer 6, at least 1 sealing ring 8 sleeved on the main shaft sealing sleeve 1, the sealing spacer and the main shaft sealing ring 7 are sleeved on the main shaft sealing sleeve 1, a plurality of air holes 701 are radially penetrated through the outer peripheral surface of the main shaft sealing ring 7, the air inlet 201 is communicated with the air passage 202, the air passage 202 is communicated with the air holes 701, the left sealing spacer 5 and the right sealing spacer 6 limit the main shaft sealing ring 7, the joint 3 is connected with compressed air, and then the compressed air 202 enters the air passage 201 to form an obvious sealing effect, and the sealing effect is better, and the main shaft sealing effect is prevented from being damaged.
As shown in fig. 1, in some embodiments, the outer peripheral surface of the main shaft sealing sleeve 1 is provided with a smooth coating 101, the area of the smooth coating 101 is not smaller than the installation surfaces of the airtight gland 4 and the airtight seat 2 and the main shaft sealing sleeve 1, the smooth coating 101 improves the sealing performance, the formed airtight sealing effect is good, the abrasion is reduced, and further preferably, the smooth coating 101 is a ceramic coating, the surface smoothness is good, and the abrasion resistance is good.
As shown in fig. 1, in some embodiments, the air hole 701 has a stepped hole structure, and the diameter of the air hole 701 gradually decreases from outside to inside, so that the air inlet effect of the stepped hole is better, and the air sealing performance is improved.
As shown in fig. 1, in some embodiments, the outer circumferential surface of the spindle sealing sleeve 1 is provided with a serrated oil slinger 102, after the spindle sealing sleeve is actually produced and installed, a labyrinth groove is matched with the oil slinger 102, and the oil slinger 102 slings oil into the labyrinth groove to prevent oil leakage.
As shown in fig. 1, in some embodiments, 2 sealing grooves 203 are provided at the right end of the airtight seat 2, and 1O-ring 204 is embedded in each sealing groove 203, so as to improve the sealing performance when the airtight seat 2 is mounted on other components.
In some embodiments, as shown in fig. 1, the air passage 202 has a ring structure, so that the air intake effect is better.
As shown in fig. 1, in some embodiments, the number of the seal rings 8 is 2, and 2 seal rings 8 are arranged near the left side of the left seal spacer 5 at intervals, so as to form a multi-seal, and further improve the sealing performance.
In some embodiments, as shown in fig. 1, the spindle sealing ring 7 is made of stainless steel, and has good wear resistance and corrosion resistance.
As shown in FIG. 1, in some embodiments, the sealing spacer is made of graphite polytetrafluoroethylene, and has the advantages of good chemical stability, good self-lubricating property, good wear resistance and good corrosion resistance.
The above examples are provided for the purpose of clearly illustrating the utility model and are not to be construed as limiting the utility model, and other variants and modifications of the various forms may be made by those skilled in the art based on the description, which are not intended to be exhaustive of all embodiments, and obvious variants or modifications of the utility model may be found within the scope of the utility model.
Claims (10)
1. The utility model provides a novel airtight structure of spiral screen centrifuge, its characterized in that, is in including main shaft seal cover (1), coaxial cover establish airtight seat (2) on main shaft seal cover (1), set up air inlet (201) of airtight seat (2) outer peripheral face, establish soon joint (3) of air inlet (201) department, set up air flue (202) in airtight seat (2), can dismantle setting up airtight gland (4) of airtight seat (2) left end, inlay establish left seal spacer (5) and right seal spacer (6) in airtight seat (2), inlay establish main shaft sealing washer (7) between left seal spacer (5) and right seal spacer (6), at least 1 cover are established sealing ring (8) on main shaft seal cover (1), seal spacer and main shaft sealing washer (7) cover are established on main shaft seal cover (1), main shaft sealing washer (7) outer peripheral face is followed its radial run through and is provided with a plurality of air flue (701), air inlet (201) with air flue (202) intercommunication, air flue (202) intercommunication.
2. The novel airtight structure of the spiral screen centrifuge according to claim 1, wherein the outer circumferential surface of the main shaft sealing sleeve (1) is provided with a smooth coating (101).
3. The novel airtight structure of a screw screen centrifuge according to claim 1, wherein the air holes (701) have a stepped hole structure, and the diameters of the air holes (701) gradually decrease from outside to inside.
4. The novel air-tight seal structure of the spiral screen centrifuge according to claim 1, wherein the outer peripheral surface of the main shaft sealing sleeve (1) is provided with a serrated oil throwing groove (102).
5. The novel airtight structure of a spiral screen centrifuge according to claim 1, wherein 2 sealing grooves (203) are formed in the right end of the airtight seat (2), and 1O-shaped sealing ring (204) is embedded in each sealing groove (203).
6. The novel hermetic seal structure of the screw screen centrifuge of claim 1, wherein the air channel (202) is of annular configuration.
7. The novel air-tight seal structure of the spiral screen centrifuge according to claim 1, wherein the number of the sealing rings (8) is 2, and 2 sealing rings (8) are arranged at intervals near the left side of the left sealing spacer (5).
8. The novel hermetic seal structure of the screw screen centrifuge as claimed in claim 2, wherein the smooth coating (101) is a ceramic coating.
9. The novel airtight structure of the spiral screen centrifuge according to claim 1, wherein the main shaft sealing ring (7) is made of stainless steel.
10. The novel hermetic seal structure of the spiral screen centrifuge according to claim 1, wherein the sealing spacer is made of graphite polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321272151.3U CN220168572U (en) | 2023-05-24 | 2023-05-24 | Novel airtight structure of spiral screen centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321272151.3U CN220168572U (en) | 2023-05-24 | 2023-05-24 | Novel airtight structure of spiral screen centrifuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220168572U true CN220168572U (en) | 2023-12-12 |
Family
ID=89063357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321272151.3U Active CN220168572U (en) | 2023-05-24 | 2023-05-24 | Novel airtight structure of spiral screen centrifuge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220168572U (en) |
-
2023
- 2023-05-24 CN CN202321272151.3U patent/CN220168572U/en active Active
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