CN220118331U - Sealing structure for vacuum cavity - Google Patents
Sealing structure for vacuum cavity Download PDFInfo
- Publication number
- CN220118331U CN220118331U CN202320484890.2U CN202320484890U CN220118331U CN 220118331 U CN220118331 U CN 220118331U CN 202320484890 U CN202320484890 U CN 202320484890U CN 220118331 U CN220118331 U CN 220118331U
- Authority
- CN
- China
- Prior art keywords
- corrosion
- plate
- anticorrosive
- baffle
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 66
- 238000005260 corrosion Methods 0.000 claims abstract description 64
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model discloses a sealing structure for a vacuum cavity, which relates to the technical field of vacuum cavity sealing and comprises a symmetrical base, a shell, an anti-corrosion structure, an anti-corrosion outer plate, an anti-corrosion inner plate, a baffle and a sealing device, wherein a second bolt is inserted into the symmetrical baffle, one end of the second bolt is inserted into threads of the anti-corrosion inner plate through the baffle, one side, close to the symmetrical baffle, of the symmetrical baffle is fixedly connected with a boss, a third bolt is inserted into the boss, one end of the third bolt is inserted into threads of the anti-corrosion inner plate through the boss.
Description
Technical Field
The utility model relates to the technical field of vacuum cavity sealing, in particular to a sealing structure for a vacuum cavity.
Background
The vacuum pump is an air extraction device which uses two screws to make synchronous high-speed reverse rotation in the pump body to produce air suction and air exhaust effect, is a newer product of oil-sealed vacuum pump, can extract gas occasion containing a large amount of water vapor and a small amount of dust, and can be widely applied to various domestic large pharmaceutical and chemical enterprises.
The utility model with the publication number of CN106762656B provides a pump shell of a screw vacuum pump, and belongs to the technical field of screw vacuum pumps. The screw vacuum pump solves the technical problems of higher use cost and the like of the pump shell of the existing screw vacuum pump. The pump shell of the screw vacuum pump comprises a pump body with a pump cavity, a cooling water cavity is formed in the pump body, the pump body is composed of a plurality of outer shells and an inner shell body made of anti-corrosion metal, the pump cavity is formed in the inner shell body, two annular fixing ribs are arranged on the outer wall of the inner shell body along the length direction, the outer shells are all arranged between the two fixing ribs and are annularly distributed, welding seals are arranged between the edges of the two ends of the outer shells and the fixing ribs, the edges of the adjacent outer shells are welded and sealed, and the cooling water cavity is formed between the outer shells and the inner shell body. The utility model has the advantage of ensuring that the anti-corrosion performance of the pump shell can be realized without arranging an anti-corrosion structure on the pump shell under the condition of ensuring the cooling of the pump shell.
To the above, the inventor considers that the current screw vacuum pump casing is an integral body, because the screw pump body rubs with the dust in the air in the rotation process, the temperature inside the casing is higher, the screw pump body continuously works in a high temperature environment to damage the casing and the pump body, the casing is welded as an integral body for ensuring the tightness of the pump body, the surface of the casing is radiated through the radiating plate, and the radiating method is low in efficiency.
Disclosure of Invention
The utility model aims to provide a sealing structure for a vacuum cavity, which aims to effectively solve the problems that the temperature inside a shell is high because a screw pump body rubs with dust in air in the rotating process, the screw pump body continuously works in a high-temperature environment to damage the shell and the pump body, the shell is welded into a whole in order to ensure the tightness of the pump body, the surface of the shell dissipates heat through a heat dissipation plate, and the heat dissipation method is low in efficiency.
In order to solve the problems, the utility model adopts the following technical scheme:
the utility model provides a seal structure for vacuum cavity, includes the symmetry base, the symmetry the one end fixedly connected with shell of base, the inside of shell is provided with anticorrosive structure, anticorrosive structure include with the anticorrosive planking of shell inner wall butt, the inner wall butt of anticorrosive planking has anticorrosive inner panel, anticorrosive planking with the both ends fixedly connected with baffle of anticorrosive inner panel, the both sides of anticorrosive structure are provided with sealing device.
As a preferable scheme of the utility model, a second bolt is inserted into the baffle symmetrically, one end of the second bolt penetrates through the baffle to be inserted into the anti-corrosion inner plate through threads, a boss is fixedly connected to one side, close to each other, of the baffle symmetrically, a third bolt is inserted into the boss, and one end of the third bolt penetrates through the boss to be inserted into the anti-corrosion inner plate through threads.
As a preferable scheme of the utility model, a first sealing ring and a second sealing ring are arranged on one side, which is symmetrical to the baffle plate and the anti-corrosion inner plate, close to each other, the diameter of the second sealing ring is smaller than that of the first sealing ring, and the second sealing ring is positioned in the first sealing ring.
As a preferable scheme of the utility model, the inner wall of one side of the shell is fixedly connected with a fixing plate, the outer walls of two sides of the anti-corrosion outer plate are symmetrically provided with limiting clamping grooves, and one side of the fixing plate is positioned in the limiting clamping grooves and is abutted against the outer wall of the anti-corrosion outer plate.
As a preferable scheme of the utility model, two sides of the shell are abutted against the baffle, first bolts are inserted into the two sides of the shell, and one ends of the first bolts penetrate through the shell and are inserted into the baffle in a threaded manner.
As a preferable scheme of the utility model, the sealing device comprises a flow guide pipe penetrating through the inner wall of the shell and the inner wall of the anti-corrosion outer plate, a sealing pipe is fixedly connected to the inside of the flow guide pipe, and an electromagnetic valve is arranged in the sealing pipe.
As a preferable scheme of the utility model, the inner wall of the anti-corrosion outer plate and the outer wall of the anti-corrosion inner plate are fixedly connected with guide plates, and the guide plates are positioned at one end of the guide pipe, which is close to the anti-corrosion inner plate.
Compared with the prior art, the utility model has the advantages that:
1. the anti-corrosion outer plate is sleeved on the surface of the anti-corrosion inner plate, two sides of the anti-corrosion outer plate and the anti-corrosion inner plate are fixed through second bolts inside the baffle, two sides of the baffle are fixed through third bolts, the shell is fixed through the first bolts, the shell is inserted into the limiting clamping groove through the fixing plate to increase the stability of the anti-corrosion outer plate, cooling liquid flows in through one group of guide pipes, liquid flows along the surfaces of the guide plates, which are positioned on the anti-corrosion outer plate and the anti-corrosion inner plate, to increase the contact area of the anti-corrosion inner plate and the liquid, to increase the heat exchange efficiency, and to reduce the internal working temperature of the anti-corrosion inner plate.
2. The inside grafting of symmetry baffle has the second bolt, the one end of second bolt runs through baffle and anticorrosive inner panel screw grafting, one side fixedly connected with boss that the symmetry baffle is close to each other, the inside grafting of boss has the third bolt, the one end of third bolt runs through boss and anticorrosive inner panel screw grafting, be ninety degrees setting between second bolt and the third bolt, at first, the second bolt is pressed from both sides the both sides of anticorrosive planking and anticorrosive inner panel through both sides baffle and is pressed from both sides tightly fixedly, make the inner wall and the anticorrosive inner panel outer wall butt of anticorrosive planking, one side that the symmetry baffle is close to each other with anticorrosive inner panel is provided with first sealing washer and second sealing washer, the diameter of second sealing washer is less than the diameter of first sealing washer, the second sealing washer is located the inside of first sealing washer, second sealing washer and first sealing washer are the polygon, the outside angle of protruding of first sealing washer and second sealing washer increases the laminating degree with the baffle, increase the leakproofness.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic side cross-sectional view of the present utility model;
FIG. 3 is a schematic diagram of the structure of the present utility model at A in FIG. 2;
fig. 4 is a schematic diagram of the structure of the present utility model at B in fig. 2.
The reference numerals in the figures illustrate:
1. a base; 2. a housing; 21. a first bolt; 22. a fixing plate; 3. an anti-corrosion structure; 31. an anti-corrosion outer plate; 311. a deflector; 312. a limit clamping groove; 32. an anti-corrosion inner plate; 4. a baffle; 41. a second bolt; 42. a boss; 421. a third bolt; 5. a sealing device; 51. a flow guiding pipe; 52. sealing the tube; 53. an electromagnetic valve; 6. a first seal ring; 61. and a second sealing ring.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.
Examples:
referring to fig. 1-4, a sealing structure for a vacuum cavity comprises a symmetrical base 1, one end of the symmetrical base 1 is fixedly connected with a shell 2, four corners of the bottom of the shell 2 are supported by the base 1, an anti-corrosion structure 3 is arranged in the shell 2, the anti-corrosion structure 3 comprises an anti-corrosion outer plate 31 abutted against the inner wall of the shell 2, an anti-corrosion inner plate 32 is abutted against the inner wall of the anti-corrosion outer plate 31, a fixing plate 22 is fixedly connected with one side inner wall of the shell 2, limit clamping grooves 312 are symmetrically formed in two side outer walls of the anti-corrosion outer plate 31, one side of the fixing plate 22 is positioned in the limit clamping grooves 312 and abutted against the outer wall of the anti-corrosion outer plate 31, the fixing plate 22 is inserted into the anti-corrosion outer plate 31, and the connecting structure strength between the shell 2 and the anti-corrosion outer plate 31 is increased through the fixing plate 22, so that the stability of the shell 2 is improved.
Referring to fig. 1-3, two ends of the anticorrosion outer plate 31 and the anticorrosion inner plate 32 are fixedly connected with a baffle plate 4, a second bolt 41 is inserted into the symmetrical baffle plate 4, one end of the second bolt 41 penetrates through the baffle plate 4 and is in threaded insertion connection with the anticorrosion inner plate 32, one side, close to each other, of the symmetrical baffle plate 4 is fixedly connected with a boss 42, a third bolt 421 is inserted into the boss 42, one end of the third bolt 421 penetrates through the boss 42 and is in threaded insertion connection with the anticorrosion inner plate 32, ninety degrees are arranged between the second bolt 41 and the third bolt 421, at first, the second bolt 41 clamps and fixes two sides of the anticorrosion outer plate 31 and the anticorrosion inner plate 32 through the two side baffles 4, so that the inner wall of the anticorrosion outer plate 31 is abutted against the outer wall of the anticorrosion inner plate 32, one side, close to each other, of the symmetrical baffle plate 4 and the anticorrosion inner plate 32 is provided with a first sealing ring 6 and a second sealing ring 61, the diameter of the second sealing ring 61 is smaller than that of the first sealing ring 6, the second sealing ring 61 is located inside the first sealing ring 6, the second sealing ring 61 and the first sealing ring 6 are polygonal, the outer angle of the first sealing ring 6 and the second sealing ring 61 is increased and the fitting degree with the baffle plate 4 is increased.
Referring to fig. 2-4, two sides of the housing 2 are abutted to the baffle 4, the first bolts 21 are inserted into two sides of the housing 2, one end of each first bolt 21 penetrates through the housing 2 and is in threaded insertion connection with the baffle 4, the baffle 4 limits the position of the housing 2, the housing 2 is fixedly connected with the baffle 4 through the first bolts 21, the housing 2 extrudes the anticorrosive outer plate 31 and the anticorrosive inner plate 32, the connection structure of the anticorrosive inner plate 32 and the anticorrosive outer plate 31 is increased in compactness, the sealing device 5 comprises a flow guide pipe 51 penetrating through the inner wall of the housing 2 and the inner wall of the anticorrosive outer plate 31, a sealing pipe 52 is fixedly connected to the inner part of the flow guide pipe 51, an electromagnetic valve 53 is arranged in the sealing pipe 52, the flow guide pipe 51 injects liquid between the anticorrosive outer plate 31 and the anticorrosive inner plate 32 through the sealing pipe 52, the heat conductivity of the liquid is increased, the inner wall of the anticorrosive outer plate 31 and the outer wall of the anticorrosive inner plate 32 are fixedly connected with a flow guide plate 311, the flow guide plate 311 is positioned at one end of the flow guide pipe 51 near the anticorrosive inner plate 32, the flow guide pipe 51 injects the liquid into the anticorrosive inner plate 31, the liquid flows along the surface of the flow guide plate 311, the anticorrosive inner plate 32 and the surface of the anticorrosive inner plate 32 is increased, the heat exchange efficiency of the anticorrosive inner plate 32 is increased, the working temperature is increased, and the working area of the inside the anticorrosive inner plate is reduced.
Working principle:
according to the utility model, when the anti-corrosion outer plate 31 is sleeved on the surface of the anti-corrosion inner plate 32 in use, the anti-corrosion outer plate 31 and the anti-corrosion inner plate 32 are fixed through the second bolts 41 in the baffle plate 4, the anti-corrosion outer plate 31 is fixed through the third bolts 421 on the two sides of the baffle plate 4, the baffle plate 4 is fixed through the first bolts 21 on the outer shell 2, the limiting clamping groove 312 is inserted into the fixing plate 22 to increase the stability of the anti-corrosion outer plate 31, cooling liquid flows in through one group of guide pipes 51, the liquid flows along the surfaces of the guide plates 311 on the anti-corrosion outer plate 31 and the anti-corrosion inner plate 32, the contact area between the anti-corrosion inner plate 32 and the liquid is increased, the heat exchange efficiency is increased, the internal working temperature of the anti-corrosion inner plate 32 is reduced, the working environment of screws in the anti-corrosion inner plate 32 is sealed through the assembly structure of the anti-corrosion outer plate 31 and the anti-corrosion inner plate 32, the anti-corrosion inner plate 32 is cooled through the liquid circulated in the inner plate 32, the anti-corrosion inner plate 31 and the anti-corrosion inner plate 32 is cooled through the first sealing ring 6 and the second sealing ring 61 to increase the sealing performance of the anti-corrosion structure 3, and the vacuum cavity is increased.
The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the improved concept thereof, can be equivalently replaced or changed within the scope of the present utility model.
Claims (7)
1. A sealing structure for a vacuum chamber, comprising:
symmetry base (1), the symmetry one end fixedly connected with shell (2) of base (1), the inside of shell (2) is provided with anticorrosive structure (3), anticorrosive structure (3) include with anticorrosive planking (31) of shell (2) inner wall butt, the inner wall butt of anticorrosive planking (31) has anticorrosive inner panel (32), anticorrosive planking (31) with the both ends fixedly connected with baffle (4) of anticorrosive inner panel (32), the both sides of anticorrosive structure (3) are provided with sealing device (5).
2. A sealing structure for a vacuum chamber according to claim 1, wherein: the inside grafting of symmetry baffle (4) has second bolt (41), the one end of second bolt (41) runs through baffle (4) with anticorrosive inner panel (32) screw thread grafting, the symmetry one side fixedly connected with boss (42) that baffle (4) are close to each other, the inside grafting of boss (42) has third bolt (421), the one end of third bolt (421) runs through boss (42) with anticorrosive inner panel (32) screw thread grafting.
3. A sealing structure for a vacuum chamber according to claim 2, wherein: the anti-corrosion inner plate is characterized in that a first sealing ring (6) and a second sealing ring (61) are arranged on one side, close to each other, of the baffle (4) and the anti-corrosion inner plate (32), the diameter of the second sealing ring (61) is smaller than that of the first sealing ring (6), and the second sealing ring (61) is located inside the first sealing ring (6).
4. A sealing structure for a vacuum chamber according to claim 1, wherein: the anti-corrosion outer plate is characterized in that a fixing plate (22) is fixedly connected to the inner wall of one side of the shell (2), limiting clamping grooves (312) are symmetrically formed in the outer walls of two sides of the anti-corrosion outer plate (31), and one side of the fixing plate (22) is located inside the limiting clamping grooves (312) and is abutted to the outer wall of the anti-corrosion outer plate (31).
5. A sealing structure for a vacuum chamber according to claim 1, wherein: the two sides of the shell (2) are abutted with the baffle (4), first bolts (21) are inserted into the two sides of the shell (2), and one ends of the first bolts (21) penetrate through the shell (2) and are in threaded insertion connection with the baffle (4).
6. A sealing structure for a vacuum chamber according to claim 1, wherein: the sealing device (5) comprises a flow guide pipe (51) penetrating through the inner wall of the shell (2) and the inner wall of the anti-corrosion outer plate (31), a sealing pipe (52) is fixedly connected to the inside of the flow guide pipe (51), and an electromagnetic valve (53) is arranged in the sealing pipe (52).
7. The sealing structure for a vacuum chamber according to claim 6, wherein: the inner wall of the anti-corrosion outer plate (31) and the outer wall of the anti-corrosion inner plate (32) are fixedly connected with guide plates (311), and the guide plates (311) are positioned at one end, close to the anti-corrosion inner plate (32), of the guide pipe (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320484890.2U CN220118331U (en) | 2023-03-14 | 2023-03-14 | Sealing structure for vacuum cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320484890.2U CN220118331U (en) | 2023-03-14 | 2023-03-14 | Sealing structure for vacuum cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220118331U true CN220118331U (en) | 2023-12-01 |
Family
ID=88912697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320484890.2U Active CN220118331U (en) | 2023-03-14 | 2023-03-14 | Sealing structure for vacuum cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220118331U (en) |
-
2023
- 2023-03-14 CN CN202320484890.2U patent/CN220118331U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220118331U (en) | Sealing structure for vacuum cavity | |
| CN211500968U (en) | Water ring pump case with heat transfer function | |
| CN211623710U (en) | Water ring pump case of spiral heat transfer | |
| CN216342685U (en) | Natural gas compressor cooling device | |
| CN114583329B (en) | Heat radiation structure for improving high-efficiency energy storage of new energy battery | |
| CN212183270U (en) | Permanent magnet motor | |
| CN210530981U (en) | Diesel generating set's heat dissipation noise reduction case | |
| CN218941352U (en) | Isothermal field structural heating pipe | |
| CN214788299U (en) | High canned type cylinder trachea connection structure of leak protection gas | |
| CN211712628U (en) | Small ozone generator with cooling function | |
| CN218000772U (en) | Pipeline connecting structure and liquid cooling system | |
| CN220541330U (en) | Coaxial tube assembly of air conditioner | |
| CN219346844U (en) | Novel condenser | |
| CN210610147U (en) | Power supply box is with heat dissipation aluminum plate | |
| CN216198822U (en) | Hydrogen circulating pump with water channel structure | |
| CN220893088U (en) | Heat exchange tube for ground source heat pump central air conditioner | |
| CN220929739U (en) | Automatic change MVR air inlet pipeline for fan | |
| CN214662796U (en) | Water pipe connector of cooling system in new energy automobile heating device | |
| CN215333437U (en) | Single-stage chemical pump with cooling device | |
| CN218379952U (en) | Deep-well type geothermal energy heat exchanger | |
| CN220303946U (en) | Cold-carrying agent storage water tank with built-in multi-layer heat exchange tube | |
| CN112628713A (en) | Energy-saving improved pipeline structure of boiler | |
| CN212899721U (en) | Mechanical sealing device with threaded pump effect | |
| CN218722457U (en) | Improved water cooling device | |
| CN214747396U (en) | Energy-efficient gas heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |