CN204061897U - Large-scale High-Pressure mechanical seal device - Google Patents
Large-scale High-Pressure mechanical seal device Download PDFInfo
- Publication number
- CN204061897U CN204061897U CN201420491741.XU CN201420491741U CN204061897U CN 204061897 U CN204061897 U CN 204061897U CN 201420491741 U CN201420491741 U CN 201420491741U CN 204061897 U CN204061897 U CN 204061897U
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- China
- Prior art keywords
- seat
- rotating
- ring
- spring
- helical spring
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- 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.)
- Expired - Fee Related
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Abstract
A kind of Large-scale High-Pressure mechanical seal device of the utility model, comprise rotating seat, rotating ring, stationary ring, to be set on pump shaft axle sleeve and the spring seat be fixedly connected on pump housing gland and the helical spring between rotating seat and spring seat, described rotating ring is press-fitted on the end face of stationary ring after helical spring extruding rotating seat, and the working depth between described spring seat exterior edge face and rotating ring exterior edge face is 12 inch.Adopt helical spring as the driving force of rotating seat axial motion between rotating seat and spring seat, after rotating ring and stationary ring contact surface abrasion, the fluctuation comparing ripple spring due to helical spring amplitude of stretching is larger, so rotating ring and stationary ring can compress by helical spring timely, prevent leakage, the rotating ring simultaneously also extended and the replacement cycle of stationary ring.The flexible amplitude of helical spring fluctuation is large, and the stroke of rotating ring axial motion is also large, also can adapt to even if working depth is lower.Belong to seal arrangement technical field.
Description
Technical field
The utility model belongs to water-tight equipment technical field, specifically a kind of Large-scale High-Pressure mechanical seal device.
Background technique
Mechanical seal is the sealed product of a kind of advanced person, it is by pressure medium and spring force, utilize a pair smooth straight and the surface having a fluid film reaches sealing effect, mechanical seal can work under some compare rugged environment, as high speed, high temperature, high pressure, low temperature, poisonous, vacuum, corrosivity, Yi Ran, explosive etc., general sealed product is incompetent, and it has good sealing effect, not wear and tear rotating shaft, the advantages such as long service life, consumed power are little, energy-conservation.
Along with China's industrial development, introduce the manufacturing equipment of a large amount of external complete petrochemical plant and advanced person especially in recent years, bring the engineering goods of large quantities of advanced person into equipment.Standby redundancy supply is progressively domesticized requirement, facilitates the development of mechanical technique.Domestic mechanical seal industry has also introduced some external manufacturing technologies, and in succession establishes Duo Jia mechanical seal joint venture, and these Dou Shi China mechanical seal products all make great progress in design, manufacture, material selection, production scale etc.
The existing a diameter of axle that is applied in is 6 inches, working depth only has the seal arrangement of 1.2 inches, and use in hyperbaric environment, so require higher to the fluctuating range of rotating ring, because sealing is the effect being played sealing by the friction of rotating ring and stationary ring surface of contact, when after contact surface abrasion, reset assembly just needs to rotating ring one thrust laterally, guarantee that stationary ring and rotating ring can close contacts timely, with liquid-leakage preventing; But what existing seal arrangement adopted is that ripple spring is as reset assembly, and flexible amplitude when the reset of ripple spring is less, after rotating ring and stationary ring contact surface abrasion, do not have enough flexible amplitudes to give rotating ring close to stationary ring, cause stationary ring and rotating ring surface of contact closely the generation of leakage situation not to occur.
Summary of the invention
Technical problem to be solved in the utility model is: provide one liquid-leakage preventing in hyperbaric environment effective, working depth is low, the Large-scale High-Pressure mechanical seal device of the rotating ring of prolongation and the replacement cycle of stationary ring.
Technical solution adopted in the utility model is: a kind of Large-scale High-Pressure mechanical seal device, it comprises the mechanical seal device be arranged between pump shaft and the pump housing, this mechanical seal device comprises and being set on pump shaft axle sleeve and the rotating seat be fixedly linked with pump shaft axle sleeve and rotating ring, to be set on pump shaft axle sleeve and the spacing stationary ring be connected on the pump housing of circumference, to be set on pump shaft axle sleeve and the spring seat be fixedly connected on pump housing gland and the helical spring between rotating seat and spring seat, described rotating ring is press-fitted on the end face of stationary ring after helical spring extruding rotating seat, working depth between described spring seat exterior edge face and rotating ring exterior edge face is 12 inch.
On described spring seat, annular space is provided with multiple for holding helical spring receiving bore uniformly, is equipped with a helical spring in each receiving bore.
Described spring seat is provided with 24 helical springs.
The latch arranged through radial direction between described spring seat and rotating seat is connected, and on described rotating seat, latch patchhole is a nibs, and latch can axial motion in a nibs.
Described stationary ring is graphite stationary ring.
The beneficial effects of the utility model are: a kind of Large-scale High-Pressure mechanical seal device of the utility model, adopt helical spring as the driving force of rotating seat axial motion between rotating seat and spring seat, after rotating ring and stationary ring contact surface abrasion, the fluctuation comparing ripple spring due to helical spring amplitude of stretching is larger, so rotating ring and stationary ring can compress by helical spring timely, prevent leakage, the rotating ring simultaneously also extended and the replacement cycle of stationary ring.The flexible amplitude of helical spring fluctuation is large, and the stroke of rotating ring axial motion is also large, also can adapt to even if work height is lower.
On described spring seat, annular space is provided with multiple for holding helical spring receiving bore uniformly, is equipped with a helical spring in each receiving bore.Advantage is: the helical spring of annular array, applies end thrust, ensure stationarity during rotating seat axial motion, be conducive to fitting tightly of rotating ring and stationary ring surface of contact to place, many places on the same face of rotating seat.
Described spring seat is provided with 24 helical springs.Advantage improves the stationarity of rotating seat axial motion.
The latch arranged through radial direction between described spring seat and rotating seat is connected, and on described rotating seat, latch patchhole is a nibs, axial motion in the stroke distances that latch can set in a nibs.Advantage avoids rotating seat when being subject to fluid pressure or spring force effect, and motion amplitude is excessive, arrange such stroke limit be conducive to avoiding being subject to fluid excessive time rotating seat clash into spring seat, when also preventing from being subject to spring-force driven dual, rotating seat departs from spring seat.
Described stationary ring is graphite stationary ring.Advantage is that graphite has high temperature resistant and erosion-resisting characteristic, the surface of contact friction of stationary ring and rotating ring, produces high temperature, adopts graphite can ensure the working life of stationary ring.
Accompanying drawing explanation
Fig. 1 is the utility model schematic diagram.
Fig. 2 is that the utility model and pump shaft assemble schematic diagram.
In figure, 1, pump shaft, 2, rotating seat, 2.1, one nibs, 3, rotating ring, 4, stationary ring, 5, spring seat, 6, helical spring, 7, latch, 8, O type circle.
Embodiment
Be below the utility model preferred embodiment, but therefore do not limit protection domain of the present utility model.
Shown in Fig. 1-Fig. 2, a kind of Large-scale High-Pressure mechanical seal device of the utility model, it comprises the mechanical seal device be arranged between pump shaft 1 and the pump housing, this mechanical seal device comprises and being set on pump shaft 1 axle sleeve and the rotating seat 2 be fixedly linked with pump shaft 1 axle sleeve and rotating ring 3, to be set on pump shaft 1 axle sleeve and the spacing stationary ring 4 be connected on the pump housing of circumference, to be set on pump shaft 1 axle sleeve and to be fixedly connected on the spring seat 5 on pump housing gland and the helical spring between rotating seat 2 and spring seat 56, described rotating ring 3 through helical spring 6 extrude be press-fitted in stationary ring 4 after rotating seat 2 end face on, working depth h between described spring seat 5 exterior edge face and rotating ring 3 exterior edge face is 12 inch.Seal through O type circle 8 between described spring seat 5 and rotating seat 3.
On described spring seat 5, annular space is provided with multiple receiving bore for holding helical spring 6 uniformly, is equipped with a helical spring 6 in each receiving bore.The helical spring 6 of annular array, applies end thrust to place, many places on the same face of rotating seat 2, ensures stationarity during rotating seat 2 axial motion, be conducive to fitting tightly of rotating ring 3 and stationary ring 4 surface of contact.
Described spring seat 5 is provided with 24 helical springs 6.Advantage improves the stationarity of rotating seat 2 axial motion.
The latch 7 arranged through radial direction between described spring seat 5 and rotating seat 2 is connected, and on described rotating seat 2, latch 7 patchhole is a nibs 2.1, axial motion in the stroke distances that latch 7 can set in a nibs 2.1.Advantage avoids rotating seat 2 when being subject to fluid pressure or spring force effect, motion amplitude is excessive, arrange such stroke limit be conducive to avoiding being subject to fluid excessive time rotating seat clash into spring seat 5, when also preventing from being subject to spring-force driven dual, rotating seat 2 departs from spring seat 5.
Described stationary ring 4 is graphite stationary ring.Graphite has high temperature resistant and erosion-resisting characteristic, the surface of contact friction of stationary ring 4 and rotating ring 3, produces high temperature, adopts graphite can ensure the working life of stationary ring 4.
A kind of Large-scale High-Pressure mechanical seal device of the utility model, adopt helical spring 6 as the driving force of rotating seat 2 axial motion between rotating seat 2 and spring seat 5, after rotating ring 3 and stationary ring 4 contact surface abrasion, the fluctuation comparing ripple spring due to helical spring 6 amplitude of stretching is larger, so rotating ring 3 and stationary ring 4 can compress by helical spring 6 timely, prevent leakage, the rotating ring 3 simultaneously also extended and the replacement cycle of stationary ring 4.Helical spring 6 fluctuates flexible amplitude greatly, and the stroke of rotating ring 3 axial motion is also large, also can adapt to even if work height is lower.
Claims (5)
1. a Large-scale High-Pressure mechanical seal device, it is characterized in that: it comprises the mechanical seal device be arranged between pump shaft (1) and the pump housing, this mechanical seal device comprises and being set on pump shaft (1) axle sleeve and the rotating seat (2) be fixedly linked with pump shaft (1) axle sleeve and rotating ring (3), to be set on pump shaft (1) axle sleeve and the spacing stationary ring (4) be connected on the pump housing of circumference, to be set on pump shaft (1) axle sleeve and the spring seat (5) be fixedly connected on pump housing gland and the helical spring (6) be positioned between rotating seat (2) and spring seat (5), described rotating ring (3) is press-fitted on the end face of stationary ring (4) after helical spring (6) extruding rotating seat (2), working depth (h) between described spring seat (5) exterior edge face and rotating ring (3) exterior edge face is 1. 2 inch.
2. Large-scale High-Pressure mechanical seal device according to claim 1, it is characterized in that: the upper annular space of described spring seat (5) is provided with multiple receiving bore for holding helical spring (6) uniformly, is equipped with a helical spring (6) in each receiving bore.
3. Large-scale High-Pressure mechanical seal device according to claim 1, is characterized in that: described spring seat (5) is provided with 24 helical springs (6).
4. Large-scale High-Pressure mechanical seal device according to claim 1, it is characterized in that: the latch (7) arranged through radial direction between described spring seat (5) and rotating seat (2) is connected, upper latch (7) patchhole of described rotating seat (2) is a nibs (2.1), axial motion in the stroke distances that latch (7) can set in a nibs (2.1).
5. Large-scale High-Pressure mechanical seal device according to claim 1, is characterized in that: described stationary ring (4) is graphite stationary ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420491741.XU CN204061897U (en) | 2014-08-25 | 2014-08-25 | Large-scale High-Pressure mechanical seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420491741.XU CN204061897U (en) | 2014-08-25 | 2014-08-25 | Large-scale High-Pressure mechanical seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204061897U true CN204061897U (en) | 2014-12-31 |
Family
ID=52203416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420491741.XU Expired - Fee Related CN204061897U (en) | 2014-08-25 | 2014-08-25 | Large-scale High-Pressure mechanical seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204061897U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669455A (en) * | 2021-07-16 | 2021-11-19 | 河北汉光重工有限责任公司 | Rotary sealing device of graphite ring structure |
-
2014
- 2014-08-25 CN CN201420491741.XU patent/CN204061897U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669455A (en) * | 2021-07-16 | 2021-11-19 | 河北汉光重工有限责任公司 | Rotary sealing device of graphite ring structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20180825 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |