CN213899889U - Dry friction mechanical sealing device - Google Patents
Dry friction mechanical sealing device Download PDFInfo
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- CN213899889U CN213899889U CN202022926999.6U CN202022926999U CN213899889U CN 213899889 U CN213899889 U CN 213899889U CN 202022926999 U CN202022926999 U CN 202022926999U CN 213899889 U CN213899889 U CN 213899889U
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Abstract
The utility model discloses a dry friction mechanical seal device, include: the sealing device comprises a shaft, a shaft sleeve, a flange, a cavity body part and a gland, wherein a flow guide sleeve is arranged between the flange and the shaft, a first static ring is arranged between the flow guide sleeve and the flange, the first static ring is axially positioned through a first pressing plate, a second static ring and a throttling ring are arranged between the gland and the shaft sleeve, a driving ring is arranged on one side of the second pressing plate, a first movable ring, a second movable ring and a shape strip are arranged between the cavity body part and the shaft sleeve, the gland is provided with a leakage guide flushing channel, the gland, the second movable ring, the second static ring, the first movable ring, the first static ring, the first pressing plate and the cavity body part are surrounded together to form a sealing cavity, isolation gas is arranged in the sealing cavity, the pressure of the isolation gas is greater than that of the sealed gas, and the cavity body part is provided with an isolation gas inlet channel and an isolation gas outlet channel communicated with the sealing cavity, so that the sealing performance of the sealing device is greatly improved, the accident caused by the leakage of the sealed gas can be prevented.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a mechanical seal field especially relates to a dry friction mechanical seal device.
[ background of the invention ]
The reaction kettle is a stainless steel container for physical or chemical reaction, the structural design and parameter configuration of the container are carried out according to different process condition requirements, and the design conditions, the process, the inspection, the manufacture and the acceptance are required according to related technical standards so as to realize the heating, the evaporation, the cooling and the low-speed and high-speed mixing reaction functions required by the process.
When the gas in the reaction kettle is toxic and harmful gas, the requirement on the sealing performance of the reaction kettle is extremely high, and if the sealing performance is not good, the toxic and harmful gas in the reaction kettle can leak to the outside of the reaction kettle, so that leakage accidents are caused.
Therefore, there is a need to provide a dry friction mechanical seal device that solves the above technical problems.
[ Utility model ] content
In order to solve the technical problem, an object of the present invention is to provide a dry friction mechanical seal device with excellent sealing performance.
The utility model discloses the technical scheme who adopts does: a dry-friction mechanical seal device comprising: the sealing device comprises a shaft, a shaft sleeve, a flange, a cavity body part and a gland, wherein the flange is connected with the cavity body part through a plurality of first fixing parts, a flange sealing ring is arranged between the flange and the cavity body part, the cavity body part is connected with the gland through a plurality of second fixing parts, a cavity body part sealing ring is arranged between the cavity body part and the gland, a shaft sleeve sealing ring is arranged between the shaft sleeve and the shaft, a flow guide sleeve is arranged between the flange and the shaft, the flow guide sleeve is connected with the flange through a plurality of third fixing parts, a first static ring is arranged between the flow guide sleeve and the flange, the first static ring is connected with the flange through a plurality of pins, the first static ring is positioned through a first pressing plate in the axial direction, a first static ring sealing ring is arranged between the first static ring and the flange, a second static ring and a throttling ring are arranged between the gland and the shaft sleeve, and the second static ring is connected with the gland through a plurality of pins, a second stationary ring sealing ring is arranged between the second stationary ring and the gland, one side of the throttle ring is connected with the gland through a pin and a spring, the other side of the throttle ring is provided with a second pressing plate, the second pressing plate is connected with the gland through a plurality of fourth fixing pieces, one side of the second pressing plate is provided with a driving ring, the driving ring is connected with the shaft sleeve through a plurality of fifth fixing pieces, a first moving ring, a second moving ring and a shape strip are arranged between the cavity piece and the shaft sleeve, the first moving ring is sleeved on the shaft sleeve in the radial direction and is provided with a first moving ring sealing ring between the shaft sleeve, the first moving ring is connected with the shaft sleeve through a first spring and a first push ring in the axial direction, the second moving ring is sleeved on the shaft sleeve in the radial direction and is provided with a second moving ring sealing ring between the shaft sleeve, and the second moving ring is connected with the shaft sleeve through a second spring and a second push ring in the axial direction, the shape strip comprises an installation part, a first driving lever extending from one end of the installation part and a second driving lever extending from the other end of the installation part, the first movable ring is provided with a first notch matched with the first driving lever, the second movable ring is provided with a second notch matched with the second driving lever, the installation part of the shape strip is connected with the shaft sleeve through a plurality of sixth fixing parts, one side of the gland is provided with an installation sheet, the installation sheet is connected with the gland through a plurality of seventh fixing parts, the first movable ring and the first stationary ring form a first friction pair, the second movable ring and the second stationary ring form a second friction pair, the gland is provided with a leakage guide flushing channel, the gland, the second movable ring, the second stationary ring, the first movable ring, the first stationary ring, the first pressing plate and the cavity part surround together to form a sealing cavity, isolating gas is arranged in the sealing cavity, and the pressure of the isolating gas is greater than that of the sealed gas, the cavity component is provided with an isolated gas inlet channel and an isolated gas outlet channel which are communicated with the sealing cavity.
Preferably, a dry friction mechanical seal device in the present invention is further configured as: the isolation gas is argon, helium or nitrogen.
Preferably, a dry friction mechanical seal device in the present invention is further configured as: the inner wall of the cavity piece is provided with a convex part in an inward protruding mode, and the first pressing plate is located between the flange and the convex part.
Preferably, a dry friction mechanical seal device in the present invention is further configured as: the flange sealing ring, the shaft sleeve sealing ring, the first static ring sealing ring, the first movable ring sealing ring and the second movable ring sealing ring are spring energy storage sealing rings.
Preferably, a dry friction mechanical seal device in the present invention is further configured as: the cavity part sealing ring and the second static ring sealing ring are O-shaped sealing rings.
Preferably, a dry friction mechanical seal device in the present invention is further configured as: and the gland is provided with a lifting ring screw.
Preferably, a dry friction mechanical seal device in the present invention is further configured as: the first fixing piece, the second fixing piece, the third fixing piece, the fourth fixing piece, the fifth fixing piece, the sixth fixing piece and the seventh fixing piece are all hexagon socket head cap screws.
Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a set up isolation gas in sealed cavity, because isolation gas's pressure slightly is greater than by sealed gas's pressure, consequently make can not leak into sealed cavity by sealed gas, the utility model discloses a set up the restrictor ring between gland and axle sleeve to it is sealed to have increased one, and the medium that prevents to leak comes out along the clearance of gland and axle sleeve, in addition the utility model discloses still be equipped with on the gland and draw the hourglass washing passageway, when isolation gas in sealed cavity or by sealed gas leak from the clearance between gland and the axle sleeve, thereby draw and leak and wash the interior logical washing medium of washing passageway and wash the appointed container with the leakage thing, to sum up, the utility model provides a dry friction mechanical seal device has improved its sealing performance greatly through above-mentioned various structural improvement to can prevent to be caused the accident by sealed gas outwards leaking.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of a medium-dry friction mechanical sealing device according to the present invention.
In fig. 1: 1. shaft, 2, shaft sleeve, 20, shaft sleeve seal, 3, flange, 30, first fixing element, 31, flange seal, 4, chamber element, 40, second fixing element, 41, chamber element seal, 42, protrusion, 43, barrier gas inlet channel, 44, barrier gas outlet channel, 5, gland, 50, eye screw, 51, leak-off flushing channel, 6, guide sleeve, 60, third fixing element, 7, first stationary ring, 70, pin, 71, first stationary ring seal, 8, first pressure plate, 9, second stationary ring, 90, pin, 91, second stationary ring seal, 10, throttle ring, 100, pin, 101, spring, 11, second pressure plate, 110, fourth fixing element, 12, drive ring, 120, fifth fixing element, 13, first moving ring, 130, first moving ring seal, 131, first notch, 132, first spring, 133, first push ring, 14, second moving ring, 140. the second movable ring sealing ring 141, the second notch 142, the second spring 143, the second push ring 15, the bar 150, the mounting part 151, the first shift lever 152, the second shift lever 153, the sixth fixing part 16, the sealing cavity 17, the mounting piece 170 and the seventh fixing part.
[ detailed description ] embodiments
A dry friction mechanical seal according to the present invention is described in further detail below with reference to specific embodiments.
Referring to fig. 1, a dry friction mechanical seal device includes: axle 1, axle sleeve 2, flange 3, cavity spare 4 and gland 5, be connected through the first mounting 30 of a plurality of between flange 3 and the cavity spare 4, be equipped with flange seal 31 between flange 3 and the cavity spare 4, be connected through a plurality of second mounting 40 between cavity spare 4 and the gland 5, be equipped with cavity spare sealing washer 41 between cavity spare 4 and the gland 5, be equipped with axle sleeve sealing washer 20 between axle sleeve 2 and the axle 1, be equipped with lifting screw 50 on the gland 5 to can make things convenient for equipment transport installation.
Be equipped with water conservancy diversion cover 6 between flange 3 and the axle 1, be connected through a plurality of third mounting 60 between water conservancy diversion cover 6 and the flange 3, be equipped with first quiet ring 7 between water conservancy diversion cover 6 and the flange 3, be connected through a plurality of round pin 70 between first quiet ring 7 and the flange 3, first quiet ring 7 axial is fixed a position through first clamp plate 8, be equipped with first quiet ring seal 71 between first quiet ring 7 and the flange 3. The inner wall of the cavity piece 4 is provided with a convex part 42 protruding inwards, and the first pressing plate 8 is positioned between the flange 3 and the convex part 42.
A second stationary ring 9 and a throttle ring 10 are arranged between the gland 5 and the shaft sleeve 2, the second stationary ring 9 is connected with the gland 5 through a plurality of pins 90, a second stationary ring seal ring 91 is arranged between the second stationary ring 9 and the gland 5, one side of the throttle ring 10 is connected with the gland 5 through a pin 100 and a spring 101, a second pressing plate 11 is arranged on the other side of the throttle ring 10, a plurality of fourth fixing members 110 are connected between the second pressing plate 11 and the gland 5, a driving ring 12 is arranged on one side of the second pressing plate 11, and the driving ring 12 is connected with the shaft sleeve 2 through a plurality of fifth fixing members 120.
A first movable ring 13, a second movable ring 14 and a strip 15 are arranged between the cavity member 4 and the shaft sleeve 2, the first movable ring 13 is sleeved on the shaft sleeve 2 in the radial direction and a first movable ring sealing ring 130 is arranged between the first movable ring 13 and the shaft sleeve 2, the first movable ring 13 and the shaft sleeve 2 are connected through a first spring 132 and a first push ring 133 in the axial direction, the second movable ring 14 is sleeved on the shaft sleeve 2 in the radial direction and a second movable ring sealing ring 140 is arranged between the second movable ring 14 and the shaft sleeve 2 in the axial direction, the second movable ring 14 and the shaft sleeve 2 are connected through a second spring 142 and a second push ring 143 in the axial direction, the strip 15 comprises an installation part 150, a first deflector rod 151 extending from one end of the installation part 150 and a second deflector rod 152 extending from the other end of the installation part 150, the first movable ring 13 is provided with a first notch 131 matched with the first deflector rod 151, the second movable ring 14 is provided with a second notch 141 matched with the second deflector rod 152, so that the shaped bar 15 forms a linkage structure with the first movable ring 13 and the second movable ring 14. The installation department 150 of shape strip 15 is connected through a plurality of sixth mounting 153 between the axle sleeve 2, one side of gland 5 is equipped with installation piece 17, be connected through a plurality of seventh mounting 170 between installation piece 17 and the gland 5, first rotating ring 13 constitutes first friction pair with first quiet ring 7, second rotating ring 14 constitutes second friction pair with second quiet ring 9.
Gland 5 is equipped with drainage washing channel 51, gland 5, second rotating ring 14, the quiet ring 9 of second, first rotating ring 13, first quiet ring 7, first clamp plate 8 and cavity spare 4 enclose jointly around forming a seal chamber 16, be equipped with isolation gas in the seal chamber 16, isolation gas can be argon gas, helium or nitrogen gas. The pressure of the isolation gas is higher than that of the sealed gas, and the chamber member 4 is provided with an isolation gas inlet passage 43 and an isolation gas outlet passage 44 which are communicated with the sealed chamber 16. In the present embodiment, the flange seal ring 31, the sleeve seal ring 20, the first stationary seal ring 71, the first moving seal ring 130, and the second moving seal ring 140 are spring-energized seal rings. The cavity member seal ring 41 and the second stationary ring seal ring 91 are O-ring seals. The first fixing member 30, the second fixing member 40, the third fixing member 60, the fourth fixing member 110, the fifth fixing member 120, the sixth fixing member 153, and the seventh fixing member 170 are all socket cap screws.
The utility model discloses well dry friction mechanical seal device's theory of operation does: the flange 3, the cavity member 4, the gland 5, the first stationary ring 7 and the second stationary ring 9 are stationary members, the driving ring 12 drives the shaft 1 to rotate, so as to drive the shaft sleeve 2 to rotate, the shape strip 15 is driven to rotate because the shape strip 15 is fixedly connected with the shaft sleeve 2, and the shape strip 15, the first movable ring 13 and the second movable ring 14 are driven to rotate together because the shape strip 15, the first movable ring 13 and the second movable ring 14 are in a linkage structure. During operation, the isolation gas needs to be continuously introduced into the sealing cavity 16, the pressure of the isolation gas is slightly greater than that of the sealed gas, so that the sealed gas cannot leak into the sealing cavity, a seal is added by arranging the throttling ring 10 between the gland 5 and the shaft sleeve 2, the leaked medium is prevented from coming out along the gap between the gland 5 and the shaft sleeve 2, the leakage guide flushing channel 51 is arranged on the gland 5, when the isolation gas or the sealed gas in the sealing cavity 16 leaks from the gap between the gland 5 and the shaft sleeve 2, the flushing medium is introduced into the leakage guide flushing channel 51 so as to flush the leaked substance into a specified container, and the leakage guide flushing action can be performed discontinuously or continuously and can be determined according to specific working conditions.
To sum up, the utility model provides a dry friction mechanical seal device has improved its sealing performance through a series of institutional advancement greatly to can prevent to be caused the accident by sealed gaseous outwards leaking.
The above-mentioned embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be applied, and are not intended to limit the present invention; it should be noted that, for those skilled in the art, without departing from the inventive concept, several variations and modifications can be made, which are within the scope of the present invention.
Claims (7)
1. A dry-friction mechanical seal device, comprising: the sealing device comprises a shaft, a shaft sleeve, a flange, a cavity body part and a gland, wherein the flange is connected with the cavity body part through a plurality of first fixing parts, a flange sealing ring is arranged between the flange and the cavity body part, the cavity body part is connected with the gland through a plurality of second fixing parts, a cavity body part sealing ring is arranged between the cavity body part and the gland, a shaft sleeve sealing ring is arranged between the shaft sleeve and the shaft, a flow guide sleeve is arranged between the flange and the shaft, the flow guide sleeve is connected with the flange through a plurality of third fixing parts, a first static ring is arranged between the flow guide sleeve and the flange, the first static ring is connected with the flange through a plurality of pins, the first static ring is positioned through a first pressing plate in the axial direction, a first static ring sealing ring is arranged between the first static ring and the flange, a second static ring and a throttling ring are arranged between the gland and the shaft sleeve, and the second static ring is connected with the gland through a plurality of pins, a second stationary ring sealing ring is arranged between the second stationary ring and the gland, one side of the throttle ring is connected with the gland through a pin and a spring, the other side of the throttle ring is provided with a second pressing plate, the second pressing plate is connected with the gland through a plurality of fourth fixing pieces, one side of the second pressing plate is provided with a driving ring, the driving ring is connected with the shaft sleeve through a plurality of fifth fixing pieces, a first moving ring, a second moving ring and a shape strip are arranged between the cavity piece and the shaft sleeve, the first moving ring is sleeved on the shaft sleeve in the radial direction and is provided with a first moving ring sealing ring between the shaft sleeve, the first moving ring is connected with the shaft sleeve through a first spring and a first push ring in the axial direction, the second moving ring is sleeved on the shaft sleeve in the radial direction and is provided with a second moving ring sealing ring between the shaft sleeve, and the second moving ring is connected with the shaft sleeve through a second spring and a second push ring in the axial direction, the shape strip comprises an installation part, a first driving lever extending from one end of the installation part and a second driving lever extending from the other end of the installation part, the first movable ring is provided with a first notch matched with the first driving lever, the second movable ring is provided with a second notch matched with the second driving lever, the installation part of the shape strip is connected with the shaft sleeve through a plurality of sixth fixing parts, one side of the gland is provided with an installation sheet, the installation sheet is connected with the gland through a plurality of seventh fixing parts, the first movable ring and the first stationary ring form a first friction pair, the second movable ring and the second stationary ring form a second friction pair, the gland is provided with a leakage guide flushing channel, the gland, the second movable ring, the second stationary ring, the first movable ring, the first stationary ring, the first pressing plate and the cavity part surround together to form a sealing cavity, isolating gas is arranged in the sealing cavity, and the pressure of the isolating gas is greater than that of the sealed gas, the cavity component is provided with an isolated gas inlet channel and an isolated gas outlet channel which are communicated with the sealing cavity.
2. A dry-friction mechanical seal according to claim 1 wherein: the isolation gas is argon, helium or nitrogen.
3. A dry-friction mechanical seal according to claim 1 wherein: the inner wall of the cavity piece is provided with a convex part in an inward protruding mode, and the first pressing plate is located between the flange and the convex part.
4. A dry-friction mechanical seal according to claim 1 wherein: the flange sealing ring, the shaft sleeve sealing ring, the first static ring sealing ring, the first movable ring sealing ring and the second movable ring sealing ring are spring energy storage sealing rings.
5. A dry-friction mechanical seal according to claim 1 wherein: the cavity part sealing ring and the second static ring sealing ring are O-shaped sealing rings.
6. A dry-friction mechanical seal according to claim 1 wherein: and the gland is provided with a lifting ring screw.
7. A dry-friction mechanical seal according to claim 1 wherein: the first fixing piece, the second fixing piece, the third fixing piece, the fourth fixing piece, the fifth fixing piece, the sixth fixing piece and the seventh fixing piece are all hexagon socket head cap screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022926999.6U CN213899889U (en) | 2020-12-07 | 2020-12-07 | Dry friction mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022926999.6U CN213899889U (en) | 2020-12-07 | 2020-12-07 | Dry friction mechanical sealing device |
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| Publication Number | Publication Date |
|---|---|
| CN213899889U true CN213899889U (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022926999.6U Active CN213899889U (en) | 2020-12-07 | 2020-12-07 | Dry friction mechanical sealing device |
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| CN (1) | CN213899889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431924A (en) * | 2020-12-07 | 2021-03-02 | 江苏华青流体科技有限公司 | Dry friction mechanical sealing device |
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2020
- 2020-12-07 CN CN202022926999.6U patent/CN213899889U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431924A (en) * | 2020-12-07 | 2021-03-02 | 江苏华青流体科技有限公司 | Dry friction mechanical sealing device |
| CN112431924B (en) * | 2020-12-07 | 2024-07-16 | 江苏华青流体科技有限公司 | Dry friction mechanical sealing device |
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