CN215333594U - Mechanical sealing device for pump capable of preventing leakage of isolation liquid - Google Patents
Mechanical sealing device for pump capable of preventing leakage of isolation liquid Download PDFInfo
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- CN215333594U CN215333594U CN202121031399.1U CN202121031399U CN215333594U CN 215333594 U CN215333594 U CN 215333594U CN 202121031399 U CN202121031399 U CN 202121031399U CN 215333594 U CN215333594 U CN 215333594U
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- shaft sleeve
- sealing ring
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Abstract
The utility model relates to a mechanical sealing device for a pump, which can prevent isolating fluid from leaking, and comprises: the shaft, the shaft sleeve, the dynamic ring, the static ring, the gland and the push ring component, the dynamic ring is arranged in the shaft sleeve and is connected with the shaft sleeve through a pin, the push ring assembly comprises a push ring and a spring, the push ring is abutted against the static ring, an isolating liquid cavity communicated with the sealing surface is formed among the gland, the static ring, the movable ring and the shaft sleeve, the gland is provided with an inlet channel and an outlet channel communicated with the isolating liquid cavity, the inlet channel and the outlet channel are both provided with pipe joints, one side of the isolating liquid cavity is provided with a VD-shaped rubber sealing ring and a sealing ring, one side of the sealing ring is provided with a second snap ring, the gland is provided with a second clamping groove matched with the second clamping ring, the end part of the shaft sleeve is provided with a third clamping groove, one side of the gland is provided with an installation sheet installed in the third clamping groove, and the installation sheet is connected with the gland through a fixing piece, so that the leakage of isolation liquid can be prevented.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to the field of mechanical sealing, in particular to a mechanical sealing device for a pump, which can prevent isolating liquid from leaking.
[ background of the utility model ]
The mechanical seal is a shaft seal device of a rotating machine. Such as centrifugal pumps, centrifuges, reaction kettles, compressors, and the like. Since the drive shaft extends through the inside and outside of the apparatus, there is a circumferential gap between the shaft and the apparatus through which the medium in the apparatus leaks out, and if the pressure in the apparatus is lower than atmospheric pressure, air leaks into the apparatus, so that a shaft seal device must be provided to prevent leakage.
The mechanical sealing device for the pump in the prior art has the following defects: 1. the structure is more complex, and the manufacturing cost is higher; 2. in order to cool and wash the sealing surface, the isolating liquid is introduced, and if the structure of the isolating liquid is unreasonable after the isolating liquid is introduced, the isolating liquid can leak, so that the cooling and washing effects are affected.
Therefore, there is a need for a mechanical seal device for a pump that solves the above-mentioned problems.
[ Utility model ] content
In order to solve the above problems, an object of the present invention is to provide a mechanical seal device for a pump that can prevent leakage of a barrier fluid.
In order to achieve the purpose, the utility model adopts the technical scheme that: a mechanical seal device for a pump capable of preventing leakage of a barrier fluid, comprising: the sealing device comprises a shaft, a shaft sleeve, a movable ring, a static ring, a gland and a push ring assembly, wherein the shaft sleeve is sleeved on the shaft, the movable ring is arranged in the shaft sleeve and is connected with the shaft sleeve through a pin, a first clamping ring is arranged on one side of the movable ring, a first clamping groove matched with the first clamping ring is arranged on the shaft sleeve, the static ring and the push ring assembly are both arranged in the gland, the push ring assembly comprises a push ring and a spring, one end of the spring is abutted to the gland, the other end of the spring is abutted to the push ring, the push ring is abutted to the static ring, a sealing surface is formed between the movable ring and the static ring, an isolating liquid cavity communicated with the sealing surface is formed between the gland, the static ring, the movable ring and the shaft sleeve, an inlet channel and an outlet channel communicated with the isolating liquid cavity are arranged on the gland, pipe joints are arranged in the inlet channel and the outlet channel, and one side of the isolating liquid cavity is provided with a VD-shaped rubber sealing ring and a sealing ring, one side of sealing ring is equipped with the second snap ring, the gland is equipped with the second draw-in groove with second snap ring matched with, the tip of axle sleeve is equipped with the third draw-in groove, one side of gland is equipped with the installation piece of installing in the third draw-in groove, be connected through the mounting between installation piece and the gland.
Preferably, the mechanical sealing device for a pump capable of preventing leakage of the isolation fluid in the utility model is further configured as follows: the sealing device is characterized in that a moving ring sealing ring is arranged between the moving ring and the shaft sleeve, a static ring sealing ring is arranged between the static ring and the gland, a shaft sleeve sealing ring is arranged between the shaft sleeve and the shaft, and a gland sealing ring is arranged between the gland and the sealing ring.
Preferably, the mechanical sealing device for a pump capable of preventing leakage of the isolation fluid in the utility model is further configured as follows: the movable ring sealing ring, the static ring sealing ring, the shaft sleeve sealing ring and the gland sealing ring are all O-shaped rings.
Preferably, the mechanical sealing device for a pump capable of preventing leakage of the isolation fluid in the utility model is further configured as follows: the fixing piece is a hexagon head bolt.
Preferably, the mechanical sealing device for a pump capable of preventing leakage of the isolation fluid in the utility model is further configured as follows: the number of the inlet channels is two, and a screw plug is arranged in one of the inlet channels.
Preferably, the mechanical sealing device for a pump capable of preventing leakage of the isolation fluid in the utility model is further configured as follows: the spring is arranged in parallel with the shaft.
Preferably, the mechanical sealing device for a pump capable of preventing leakage of the isolation fluid in the utility model is further configured as follows: the shaft sleeve is provided with a boss, one side of the VD-shaped rubber sealing ring is abutted against the boss, and the other side of the VD-shaped rubber sealing ring is abutted against the sealing ring.
Compared with the prior art, the utility model has the following beneficial effects: the mechanical sealing device for the pump is simple in structure and convenient to install, and the VD-shaped rubber sealing ring and the sealing ring are arranged on one side of the isolation liquid cavity, so that isolation liquid can be prevented from leaking.
[ description of the drawings ]
Fig. 1 is a schematic sectional view showing a mechanical seal device for a pump according to the present invention.
Fig. 2 is a side view schematically showing the mechanical seal device for a pump according to the present invention.
In fig. 1 and 2: 1. the shaft, 2, the shaft sleeve, 20, the shaft sleeve sealing ring, 21, the pin, 22, the boss, 23, the third clamping groove, 24, the first clamping groove, 3, the movable ring, 30, the movable ring sealing ring, 31, the first clamping ring, 32, the sealing surface, 4, the stationary ring, 40, the stationary ring sealing ring, 5, the gland, 50, the isolating liquid cavity, 51, the inlet channel, 510, the first pipe joint, 511, the screw plug, 52, the outlet channel, 53, the gland sealing ring, 54, the second clamping groove, 6, the push ring component, 60, the push ring, 61, the spring, 7, the VD-shaped rubber sealing ring, 8, the sealing ring, 80, the second clamping ring, 9, the mounting piece, 90 and the fixing piece.
[ detailed description ] embodiments
The mechanical seal device for a pump according to the present invention for preventing leakage of a spacer fluid will be described in further detail with reference to the following embodiments.
Referring to fig. 1 and 2, a mechanical seal device for a pump capable of preventing leakage of a spacer fluid includes: axle 1, axle sleeve 2, rotating ring 3, quiet ring 4, gland 5 and throw-out collar subassembly 6, axle sleeve 2 cover is located epaxially 1, be equipped with axle sleeve sealing washer 20 between axle sleeve 2 and the axle 1, rotating ring 3 set up in axle sleeve 2 and with axle sleeve 2 between be connected through round pin 21, be equipped with rotating ring sealing washer 30 between rotating ring 3 and the axle sleeve 2, one side of rotating ring 3 is equipped with first snap ring 31, axle sleeve 2 is equipped with the first draw-in groove 24 with first snap ring 31 matched with.
The stationary ring 4 and the push ring assembly 6 are both arranged in the gland 5, the stationary ring seal ring 40 is arranged between the stationary ring 4 and the gland 5, the push ring assembly 6 includes a push ring 60 and a spring 61, the spring 61 is arranged in parallel with the shaft 1, one end of the spring 61 abuts against the gland 5, the other end of the spring 61 abuts against the push ring 60, the push ring 60 abuts against the stationary ring 4, a sealing surface 32 is formed between the moving ring 3 and the stationary ring 4, a barrier fluid cavity 50 communicated with the sealing surface 32 is formed between the gland 5, the stationary ring 4, the moving ring 3 and the shaft sleeve 2, an inlet channel 51 and an outlet channel 52 communicated with the barrier fluid cavity 50 are arranged on the gland 5, a first pipe joint 510 is arranged in the inlet channel 51, a second pipe joint (not shown) is arranged in the outlet channel 52, in the present embodiment, the number of the inlet channels 51 is two, one of the inlet passages 51 is provided with a plug screw 511.
One side of keeping apart sap cavity 50 is equipped with VD shape rubber seal 7 and sealing ring 8, axle sleeve 2 is equipped with boss 22, one side and this boss 22 looks butt of VD shape rubber seal 7, the opposite side and the sealing ring 8 looks butt of VD shape rubber seal 7. Be equipped with gland sealing washer 53 between gland 5 and the sealing ring 8, one side of sealing ring 8 is equipped with second snap ring 80, gland 5 is equipped with second snap ring 80 matched with second draw-in groove 54, the tip of axle sleeve 2 is equipped with third draw-in groove 23, one side of gland 5 is equipped with the installation piece 9 of installing in third draw-in groove 23, be connected through mounting 90 between installation piece 9 and the gland 5, in this embodiment, mounting 90 is hexagon head bolt, rotating ring sealing washer 30, quiet ring sealing washer 40, axle sleeve sealing washer 20 and gland sealing washer 53 are O shape circle.
The working principle of the mechanical sealing device for the pump in the utility model is as follows: the shaft 1, the shaft sleeve 2 and the movable ring 3 are rotating parts, the gland 5, the stationary ring 4, the push ring assembly 6, the VD-shaped rubber sealing ring 7 and the sealing ring 8 are stationary parts, a sealing surface 32 is formed between the movable ring 3 and the stationary ring 4, during work, isolating liquid is introduced into the isolating liquid cavity 50 from the inlet channel 51, the isolating liquid in the isolating liquid cavity 50 can wash and cool the sealing surface 32, and then the isolating liquid is discharged from the outlet channel 52.
In conclusion, the mechanical sealing device for the pump is simple in structure and convenient to install, and the VD-shaped rubber sealing ring and the sealing ring are arranged on one side of the isolation liquid cavity, so that the isolation liquid can be prevented from leaking.
The above-mentioned embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be used, not restrictive; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.
Claims (7)
1. The utility model provides a can prevent mechanical seal device for pump of buffer fluid leakage which characterized in that: the method comprises the following steps: the sealing device comprises a shaft, a shaft sleeve, a movable ring, a static ring, a gland and a push ring assembly, wherein the shaft sleeve is sleeved on the shaft, the movable ring is arranged in the shaft sleeve and is connected with the shaft sleeve through a pin, a first clamping ring is arranged on one side of the movable ring, a first clamping groove matched with the first clamping ring is arranged on the shaft sleeve, the static ring and the push ring assembly are both arranged in the gland, the push ring assembly comprises a push ring and a spring, one end of the spring is abutted to the gland, the other end of the spring is abutted to the push ring, the push ring is abutted to the static ring, a sealing surface is formed between the movable ring and the static ring, an isolating liquid cavity communicated with the sealing surface is formed between the gland, the static ring, the movable ring and the shaft sleeve, an inlet channel and an outlet channel communicated with the isolating liquid cavity are arranged on the gland, pipe joints are arranged in the inlet channel and the outlet channel, and one side of the isolating liquid cavity is provided with a VD-shaped rubber sealing ring and a sealing ring, one side of sealing ring is equipped with the second snap ring, the gland is equipped with the second draw-in groove with second snap ring matched with, the tip of axle sleeve is equipped with the third draw-in groove, one side of gland is equipped with the installation piece of installing in the third draw-in groove, be connected through the mounting between installation piece and the gland.
2. The mechanical seal device for a pump for preventing leakage of a barrier fluid according to claim 1, wherein: the sealing device is characterized in that a moving ring sealing ring is arranged between the moving ring and the shaft sleeve, a static ring sealing ring is arranged between the static ring and the gland, a shaft sleeve sealing ring is arranged between the shaft sleeve and the shaft, and a gland sealing ring is arranged between the gland and the sealing ring.
3. A mechanical seal for a pump for preventing leakage of a barrier fluid according to claim 2, wherein: the movable ring sealing ring, the static ring sealing ring, the shaft sleeve sealing ring and the gland sealing ring are all O-shaped rings.
4. The mechanical seal device for a pump for preventing leakage of a barrier fluid according to claim 1, wherein: the fixing piece is a hexagon head bolt.
5. The mechanical seal device for a pump for preventing leakage of a barrier fluid according to claim 1, wherein: the number of the inlet channels is two, and a screw plug is arranged in one of the inlet channels.
6. The mechanical seal device for a pump for preventing leakage of a barrier fluid according to claim 1, wherein: the spring is arranged in parallel with the shaft.
7. The mechanical seal device for a pump for preventing leakage of a barrier fluid according to claim 1, wherein: the shaft sleeve is provided with a boss, one side of the VD-shaped rubber sealing ring is abutted against the boss, and the other side of the VD-shaped rubber sealing ring is abutted against the sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121031399.1U CN215333594U (en) | 2021-05-14 | 2021-05-14 | Mechanical sealing device for pump capable of preventing leakage of isolation liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121031399.1U CN215333594U (en) | 2021-05-14 | 2021-05-14 | Mechanical sealing device for pump capable of preventing leakage of isolation liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215333594U true CN215333594U (en) | 2021-12-28 |
Family
ID=79546050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121031399.1U Active CN215333594U (en) | 2021-05-14 | 2021-05-14 | Mechanical sealing device for pump capable of preventing leakage of isolation liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215333594U (en) |
-
2021
- 2021-05-14 CN CN202121031399.1U patent/CN215333594U/en active Active
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