CN112537410A - Airtight type bulkhead end face sealing device - Google Patents
Airtight type bulkhead end face sealing device Download PDFInfo
- Publication number
- CN112537410A CN112537410A CN202011549599.6A CN202011549599A CN112537410A CN 112537410 A CN112537410 A CN 112537410A CN 202011549599 A CN202011549599 A CN 202011549599A CN 112537410 A CN112537410 A CN 112537410A
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- CN
- China
- Prior art keywords
- transmission
- sealing
- shell
- ring
- gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
- B63B19/12—Hatches; Hatchways
- B63B19/28—Other safety means
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention relates to an airtight bulkhead end face sealing device which is mainly applied to the field of gas sealing and water sealing between cabins of ships and warships and comprises a shell, a cover plate, sealing rings, a transmission pin, a compression spring, a transmission ring, a flat key and a first sealing ring, wherein the shell is sleeved on a main shaft, the transmission ring is arranged inside the shell and sleeved on the main shaft, two sides of the transmission ring are respectively provided with one sealing ring, the two sealing rings are connected with the transmission ring through a plurality of transmission pins, and the transmission pin is provided with the compression spring; the two sides of the shell are symmetrically provided with two cover plates, the cover plates are connected with the transmission pins, the top of the shell is provided with a water inlet, and the bottom of the shell is provided with a water outlet. The airtight type bulkhead end face sealing device can realize the isolation of seawater and gas between ship cabins, increases the function of gas sealing on the basis of the traditional bulkhead end face sealing device, and expands the function and application range of products.
Description
Technical Field
The invention relates to an airtight bulkhead end face sealing device which is mainly applied to the field of gas sealing and water sealing between cabins of ships and prevents gas or seawater between adjacent cabins from flowing mutually.
Background
The traditional bulkhead end face sealing device mainly has a water-resisting function, prevents seawater from leaking to other cabins from one cabin when the cabin is damaged and leaks water accidentally, reduces loss and influence of a ship in an accidental emergency, and has no function of isolating gas.
Traditional bulkhead end face sealing device mainly comprises parts such as casing, apron, sealing ring, O shape sealing washer, adopts the sealed principle of floating ring, and when no water entered, the membrane dish rotated with shafting synchronous, and the membrane dish can be automatically looked for well, realizes no power loss dry run. When water enters and reaches a certain water pressure, the membrane disc can be attached to one side of the shell and is in a static (sealing) state and does not rotate along with the shafting. A small gap is reserved between the inner ring surface of the membrane disc and the shaft, floating sealing is achieved, and the whole sealing of the device is achieved by matching with an O-shaped sealing ring. But gas sealing cannot be achieved.
Disclosure of Invention
The invention aims to overcome the defects and provide a novel bulkhead end face sealing device with a gas sealing function, and the novel bulkhead end face sealing device has the function of isolating seawater and gas between cabins, so that the safety of ships in unexpected emergency is enhanced. The sealing device has the characteristics of good sealing performance, strong shock resistance, strong displacement compensation capability and the like.
According to the technical scheme provided by the invention, the airtight type bulkhead end face sealing device comprises a shell, a cover plate, sealing rings, a transmission pin, a compression spring, a transmission ring and a first sealing ring, wherein the shell is sleeved on a main shaft, the transmission ring is arranged in the shell and sleeved on the main shaft, two sides of the transmission ring are respectively provided with one sealing ring, the two sealing rings are connected with the transmission ring through a plurality of transmission pins, and the transmission pin is provided with the compression spring; the two sides of the shell are symmetrically provided with two cover plates, the cover plates are connected with the transmission pins, the top of the shell is provided with a water inlet, and the bottom of the shell is provided with a water outlet.
As a further improvement of the invention, the main body parts of the cover plate, the sealing ring and the transmission ring are designed into half-half structure, and the half surfaces are positioned by pins and connected by bolts and then connected into a whole.
As a further improvement of the invention, the cover plate and the shell are fastened through bolts.
As a further improvement of the invention, the transmission ring is fixed with the main shaft through a flat key.
As a further improvement of the invention, a first sealing ring is arranged between the sealing ring and the main shaft.
As a further improvement of the invention, a second sealing ring is arranged between the cover plate and the shell.
As a further improvement of the invention, the shell, the cover plate and the transmission ring are made of seawater corrosion resistant bronze alloy materials.
As a further improvement of the invention, the sealing ring is made of a thermosetting fiber reinforced resin matrix composite material.
Compared with the prior art, the invention has the following advantages:
the airtight type bulkhead end face sealing device can realize the isolation of seawater and gas between ship cabins, increases the function of gas sealing on the basis of the traditional bulkhead end face sealing device, and expands the function and application range of products.
Drawings
Fig. 1 is a cross-sectional view of the overall structure of the present invention.
Fig. 2 is a view of the installation position of the present invention.
Description of reference numerals: the sealing device comprises a shell 1, a cover plate 2, a sealing ring 3, a transmission pin 4, a compression spring 5, a transmission ring 6, a flat key 7, a first sealing ring 8, a second sealing ring 9, a main shaft 10, a water inlet 11 and a water outlet 12.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
As shown in the figure, the airtight type bulkhead end face sealing device is characterized by comprising a shell 1, a cover plate 2, sealing rings 3, transmission pins 4, compression springs 5, transmission rings 6, a flat key 7 and a first sealing ring 8, wherein the shell 1 is sleeved on a main shaft 10, the transmission rings 6 are arranged inside the shell 1, the transmission rings 6 are sleeved on the main shaft 10, the sealing rings 3 are respectively arranged on two sides of each transmission ring 6, the two sealing rings 3 are connected with the transmission rings 6 through the transmission pins 4, the compression springs 5 are arranged on the transmission pins 4, 6-8 groups of transmission pins 4 and the compression springs 5 are uniformly arranged in the circumferential direction, and the transmission pins 4 penetrate through the compression springs 5 and then are inserted into mounting holes in the side faces of the sealing rings 3. When the main shaft 10 rotates, the driving ring 6 can drive the sealing rings 3 on two sides to synchronously rotate through the driving pin 4. After the installation is finished, the compression spring 5 has a compression pre-tightening amount of 3-5mm and provides axial pre-tightening force, so that the sealing ring 3 is tightly attached to the cover plate 2; two cover plates 2 are symmetrically arranged on two sides of the shell 1, the cover plates 2 are connected with a transmission pin 3, and under the combined action of spring force and water pressure, the sealing ring 3 is tightly attached to the cover plates 2 to form a water-lubricated end face sealing friction pair, so that end face water sealing is realized, and gas or seawater between adjacent cabins is prevented from flowing mutually; the top of the shell 1 is provided with a water inlet 11, the bottom of the shell is provided with a water outlet 12, cooling water flows in from the upper part and flows out from the lower part, certain water pressure is kept in the device, and the device has the functions of lubricating and cooling the friction end face of the device and increasing the water pressure of the end face.
The main body parts of the cover plate 2, the sealing ring 3 and the transmission ring 6 are designed into half-half structure, and the half surfaces are positioned by pins and connected by bolts and then connected into a whole.
The cover plate 2 and the shell 1 are fastened through bolts.
The transmission ring 6 is fixed with the main shaft 10 through a flat key 7.
A first sealing ring 8 is arranged between the sealing ring 3 and the main shaft 10, a second sealing ring 9 is arranged between the cover plate 2 and the shell, wherein the first sealing ring 8 and the second sealing ring 9 are both O-shaped sealing rings, and the O-shaped sealing rings are arranged between the sealing ring 3 and the main shaft 10, so that static sealing between related parts is realized.
The shell 1, the cover plate 2 and the transmission ring 6 are made of seawater corrosion resistant bronze alloy materials, and the sealing ring 3 is made of thermosetting fiber reinforced resin matrix composite materials, so that the marine water lubrication friction sealing requirement is met.
The working principle of the invention is as follows:
as shown in the above figure, the device is designed to adopt a bilateral symmetrical end face sealing structure, the inside of the device is filled with (circulating) cooling water, the upper end of the device enters the device, the lower end of the device flows out, a certain water pressure is kept, under the combined action of spring force and water pressure, when the main shaft 10 rotates, the sealing ring 3 is tightly attached to the cover plate 2 to form a water lubrication end face sealing friction pair, the end face water sealing is realized, and the gas or seawater between adjacent cabins is prevented from flowing mutually.
Each main structural part (the shell, the cover plate, the sealing ring and the transmission ring) adopts a half structural design, and the installation, the maintenance and the like are convenient.
When the main shaft 10 moves, enough gaps are reserved between the main shaft 10 and the cover plate 2 and between the sealing ring 3 and the shell 1 in the radial direction, and rigid collision is prevented. In the axial direction, when the main shaft 10 moves, the transmission ring 6 can perform sliding compensation on the flat key, and the phenomenon of blocking cannot occur.
Claims (8)
1. The airtight type bulkhead end face sealing device is characterized by comprising a shell (1), a cover plate (2), sealing rings (3), transmission pins (4), compression springs (5), transmission rings (6) and first sealing rings (8), wherein the shell (1) is sleeved on a main shaft (10), the transmission rings (6) are arranged inside the shell (1), the transmission rings (6) are sleeved on the main shaft (10), the two sides of each transmission ring (6) are respectively provided with one sealing ring (3), the two sealing rings (3) are connected with the transmission rings (6) through the transmission pins (4), and the compression springs (5) are arranged on the transmission pins (4); the two sides of the shell (1) are symmetrically provided with two cover plates (2), the cover plates (2) are connected with the transmission pin (3), the top of the shell (1) is provided with a water inlet (11), and the bottom of the shell is provided with a water outlet (12).
2. The gas-tight bulkhead end face seal device according to claim 1, wherein the main body parts of the cover plate (2), the seal ring (3) and the transmission ring (6) are of a half-structure, and the half faces are connected into a whole by pin positioning and bolts.
3. A gas-tight bulkhead end-face seal according to claim 1, characterised in that the cover plate (2) is bolted to the housing (1).
4. A gas-tight bulkhead end-face seal according to claim 1, characterised in that the drive ring (6) is secured to the spindle (10) by a flat key (7).
5. A gas-tight compartment end face seal according to claim 1, characterised in that a first seal (8) is provided between the seal ring (3) and the main shaft (10).
6. A gas-tight compartment end-face seal according to claim 1, characterised in that a second sealing ring (9) is provided between the cover plate (2) and the housing.
7. A gas-tight compartment end face seal according to claim 1, characterised in that the housing (1), the cover plate (2) and the drive ring (6) are made of corrosion-resistant bronze alloy material.
8. A gas-tight compartment end face seal according to claim 1, characterised in that the sealing ring (3) is of a thermosetting fibre-reinforced resin-based composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011549599.6A CN112537410A (en) | 2020-12-24 | 2020-12-24 | Airtight type bulkhead end face sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011549599.6A CN112537410A (en) | 2020-12-24 | 2020-12-24 | Airtight type bulkhead end face sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112537410A true CN112537410A (en) | 2021-03-23 |
Family
ID=75017387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011549599.6A Pending CN112537410A (en) | 2020-12-24 | 2020-12-24 | Airtight type bulkhead end face sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112537410A (en) |
-
2020
- 2020-12-24 CN CN202011549599.6A patent/CN112537410A/en active Pending
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