CN214838399U - Double-sided moving ring slurry circulating pump mechanical seal with expansion device and back flow stopping - Google Patents
Double-sided moving ring slurry circulating pump mechanical seal with expansion device and back flow stopping Download PDFInfo
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- CN214838399U CN214838399U CN202120577282.7U CN202120577282U CN214838399U CN 214838399 U CN214838399 U CN 214838399U CN 202120577282 U CN202120577282 U CN 202120577282U CN 214838399 U CN214838399 U CN 214838399U
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Abstract
The utility model discloses a two-sided rotating ring slurry circulating pump mechanical seal that tight device and back were dams are expanded in area relates to sealing device technical field. Including the rotating ring seat, the inboard of rotating ring seat is provided with the axle sleeve, and the outside of rotating ring seat is provided with two-sided rotating ring, and the fixed quiet ring that is provided with in top of two-sided rotating ring, the outside of quiet ring is provided with the gland, and the top of quiet ring is provided with the spring holder, and the inside of spring holder is provided with labyrinth shut-off sleeve, is provided with quiet ring O type circle between quiet ring and the gland, and the outside of gland is provided with gland O type circle, through gland connecting screw connection setting between spring holder and the gland, is provided with the tight cover subassembly that expands directly over the spring holder, and the inside of the tight cover subassembly that expands is provided with the tight cover subassembly tension bolt that expands, back portion install additional packing graphite polytetrafluoroethylene, labyrinth shut-off the cover device, the sparge water produces the effect that dams when the labyrinth clearance, can be to its inside effective clean cooling, can also reach the purpose that prevents to leak.
Description
Technical Field
The utility model relates to a sealing device technical field specifically is two-sided rotating ring slurry circulating pump mechanical seal that area bloated tight device and back dammed.
Background
The circulating pump is a circulating liquid pump for conveying reaction, absorption, separation and absorption liquid regeneration in the device. Its lift is low and is only used to overcome the pressure drop of the circulation system. A low-lift pump may be used. The circulating pump is the function of the pump, and the centrifugal pump is the structure of the pump, and the two concepts are completely two concepts. The working principle of the circulating pump is that the pump used for circulating water is called a circulating pump, for example, hot water in a water heating pipeline is circulated by the circulating pump, and gypsum, lime slurry, corrosive slurry containing solid particles and other occasions with high impurity content, such as a desulfurization circulating pump, a slurry circulating pump and a slurry pump.
The mechanical seals of the prior art have the following problems:
1. the back of the mechanical sealing spring seat is an open type closure-free sealing device. In the operation process, washing water is started, so that leakage is easy, and the requirement on water pressure is high;
2. the mechanical seal is mainly used for pumps with large shaft diameters and high revolutions, the driving device is single, the pretightening force is poor, and the screw loosening can be caused after long-term operation;
3. the mechanical seal moving ring structure is easy to fill and block the inside with media when leakage occurs, has high difficulty in maintenance and disassembly, and is easy to crack and damage.
SUMMERY OF THE UTILITY MODEL
The utility model provides a two-sided rotating ring slurry circulating pump mechanical seal that tight device and back were dams are expanded in area possesses and does benefit to sealed, prevents to leak and long service life's advantage to solve current sealing device and have the general problem of result of use.
For the realization does benefit to sealed, prevents the purpose of leaking and long service life, the utility model provides a following technical scheme: two-sided rotating ring slurry circulating pump mechanical seal that tight device and back were dams expand in area, including the rotating ring seat, the inboard of rotating ring seat is provided with the axle sleeve, the outside of rotating ring seat is provided with two-sided rotating ring, the fixed quiet ring that is provided with in top of two-sided rotating ring, the outside of quiet ring is provided with the gland, the top of quiet ring is provided with the spring holder, the inside of spring holder is provided with labyrinth and intercepts the flow sleeve, be provided with quiet ring O type circle between quiet ring and the gland, the outside of gland is provided with gland O type circle, be connected the setting through gland connecting screw between spring holder and the gland, be provided with the tight cover subassembly that expands directly over the spring holder, the inside of the tight cover subassembly that expands is provided with the tight cover subassembly tension bolt that expands.
As the utility model discloses a preferred technical scheme, the inboard of axle sleeve is provided with axle sleeve O type circle.
As the utility model discloses an optimal technical scheme, it is provided with two-sided rotating ring O type circle to prevent changeing the screw through two-sided rotating ring between axle sleeve and the two-sided rotating ring.
As the utility model discloses a preferred technical scheme, be provided with the spring that is located the spring holder inside under the maze interception cover, the top of spring is provided with the throw-out collar.
As the utility model discloses a preferred technical scheme, the interior hole of washing has been seted up on the gland, the back hole of washing has been seted up to one side of spring holder.
Compared with the prior art, the utility model provides a two-sided rotating ring slurry circulating pump mechanical seal that tight device and back were dams is expanded in area possesses following beneficial effect:
1. this take two-sided rotating ring slurry circulating pump mechanical seal that tight device and back were dams installs additional packing graphite polytetrafluoroethylene in the back, and labyrinth damps the cover device, and the sparge water produces the effect of damming when the labyrinth clearance, can effectively clean the cooling to its inside, can also reach the purpose that prevents the leakage.
2. The double-sided movable ring slurry circulating pump with the expansion device and the back intercepting function is mechanically sealed, the expansion sleeve driving device is connected without a key, huge holding force is generated between the inner ring and the shaft through the high-strength tension bolt, and the double-sided movable ring slurry circulating pump has the advantages of high strength, stability and reliability.
3. The double-sided moving ring slurry circulating pump with the expansion device and the back intercepting function is mechanically sealed, operates in an environment with corrosive slurry of solid particles, and can play the roles of high hardness, small abrasion, long service life, low loss and the like by matching with internal flushing water even if the moving ring is completely soaked in the slurry. The two friction pairs of the moving ring are recycled, so that the device is easy to disassemble and clean, low in maintenance cost and high in efficiency, and is more suitable for an ACP-TL series slurry circulating pump.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the inner flushing water hole of the present invention.
In the figure: 1. a movable ring seat; 2. a shaft sleeve; 3. a double-sided moving ring; 4. a stationary ring; 5. a gland; 6. a spring seat; 7. a labyrinth cutoff sleeve; 8. positioning blocks; 9. expanding the sleeve assembly; 10. a push ring; 11. an O-shaped ring of the shaft sleeve; 12. double-sided moving ring O-shaped rings; 13. a stationary ring O-shaped ring; 14. pressing an O-shaped ring; 15. expanding a tension bolt of the sleeve assembly; 16. the uterine closure sleeve screw of the water hole of the flush in the fan; 17. a double-sided rotating ring anti-rotation screw; 18. a gland connecting screw; 19. a spring; F. inner flushing water holes; D. a back flushing water hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the utility model discloses a mechanical seal of a double-sided moving-ring slurry circulating pump with a tightening device and back cut-off, which comprises a moving-ring seat 1, the inner side of the moving ring seat 1 is provided with a shaft sleeve 2, the outer side of the moving ring seat 1 is provided with a double-sided moving ring 3, the top of the double-sided moving ring 3 is fixedly provided with a static ring 4, the outer side of the static ring 4 is provided with a gland 5, the top of the static ring 4 is provided with a spring seat 6, the inside of the spring seat 6 is provided with a labyrinth intercepting sleeve 7, a stationary ring O-shaped ring 13 is arranged between the stationary ring 4 and the gland 5, a gland O-shaped ring 14 is arranged on the outer side of the gland 5, the spring seat 6 and the gland 5 are connected through a gland connecting screw 18, an expansion sleeve assembly 9 is arranged right above the spring seat 6, and an expansion sleeve assembly tension bolt 15 is arranged inside the expansion sleeve assembly 9.
Specifically, a shaft sleeve O-ring 11 is arranged on the inner side of the shaft sleeve 2.
Specifically, a double-sided rotating ring O-shaped ring 12 is arranged between the shaft sleeve 2 and the double-sided rotating ring 3 through a double-sided rotating ring anti-rotating screw 17.
Specifically, a spring 19 positioned in the spring seat 6 is arranged right below the labyrinth intercepting sleeve 7, and a push ring 10 is arranged at the top of the spring 19.
Specifically, an inner washing water hole F is formed in the pressing cover 5, and a back washing water hole D is formed in one side of the spring seat 6.
The utility model discloses a theory of operation and use flow: when the double-sided rotating ring sealing device is used, the shaft sleeve 2 drives the double-sided rotating ring 3 to rotate, and the static ring 4 is constantly attached to the double-sided rotating ring 3 under the action of the spring 19 and fluid pressure, so that a sealing state is achieved, and a medium is prevented from leaking; the sealed medium generates a cut-off effect when passing through the clearance of the labyrinth cut-off sleeve 7 so as to achieve the purpose of preventing leakage; the back lubricating and cooling washing water D is introduced while the internal washing water F is continuously started, so that the service life is effectively prolonged; the keyless connection expansion sleeve driving device 9 generates huge holding force between the inner ring and the shaft through the high-strength tension bolt 15, and has the functions of high strength, stability and reliability.
To sum up, this take two-sided rotating ring slurry circulating pump mechanical seal that tight device and back were dams that expands, the back installs additional packing graphite polytetrafluoroethylene, labyrinth closure sleeve device, the sparge water produces the damming effect when the labyrinth clearance, can effectively clean the cooling to its inside, can also reach the purpose that prevents the leakage, the tight cover drive arrangement that expands of keyless connection, through high strength tension bolt, produce huge holding power between inner ring and axle, there is intensity height, reliable and stable effect, the environment that has solid particle corrosivity thick liquid moves down, even the rotating ring soaks wherein completely, the sparge water in the cooperation, can play hardness height, wearing and tearing are little, long service life, effects such as low loss. The two friction pairs of the moving ring are recycled, so that the device is easy to disassemble and clean, low in maintenance cost and high in efficiency, and is more suitable for an ACP-TL series slurry circulating pump.
It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. Area bloated tight device and back two-sided rotating ring slurry circulating pump mechanical seal who dams, including rotating ring seat (1), its characterized in that: a shaft sleeve (2) is arranged on the inner side of the movable ring seat (1), a double-faced movable ring (3) is arranged on the outer side of the movable ring seat (1), a static ring (4) is fixedly arranged at the top of the double-sided dynamic ring (3), a gland (5) is arranged at the outer side of the static ring (4), a spring seat (6) is arranged at the top of the static ring (4), a labyrinth intercepting sleeve (7) is arranged inside the spring seat (6), a static ring O-shaped ring (13) is arranged between the static ring (4) and the gland (5), a gland O-shaped ring (14) is arranged on the outer side of the gland (5), the spring seat (6) and the gland (5) are connected through a gland connecting screw (18), an expansion sleeve assembly (9) is arranged right above the spring seat (6), and an expansion sleeve assembly tension bolt (15) is arranged inside the expansion sleeve assembly (9).
2. The mechanical seal of a double-sided moving-ring slurry circulation pump with a tightening device and back shutoff according to claim 1, wherein: and a shaft sleeve O-shaped ring (11) is arranged on the inner side of the shaft sleeve (2).
3. The mechanical seal of a double-sided moving-ring slurry circulation pump with a tightening device and back shutoff according to claim 1, wherein: and a double-sided rotating ring O-shaped ring (12) is arranged between the shaft sleeve (2) and the double-sided rotating ring (3) through a double-sided rotating ring anti-rotating screw (17).
4. The mechanical seal of a double-sided moving-ring slurry circulation pump with a tightening device and back shutoff according to claim 1, wherein: a spring (19) positioned in the spring seat (6) is arranged right below the labyrinth intercepting sleeve (7), and a push ring (10) is arranged at the top of the spring (19).
5. The mechanical seal of a double-sided moving-ring slurry circulation pump with a tightening device and back shutoff according to claim 1, wherein: an inner washing water hole (F) is formed in the gland (5), and a back washing water hole (D) is formed in one side of the spring seat (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120577282.7U CN214838399U (en) | 2021-03-22 | 2021-03-22 | Double-sided moving ring slurry circulating pump mechanical seal with expansion device and back flow stopping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120577282.7U CN214838399U (en) | 2021-03-22 | 2021-03-22 | Double-sided moving ring slurry circulating pump mechanical seal with expansion device and back flow stopping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214838399U true CN214838399U (en) | 2021-11-23 |
Family
ID=78759193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120577282.7U Active CN214838399U (en) | 2021-03-22 | 2021-03-22 | Double-sided moving ring slurry circulating pump mechanical seal with expansion device and back flow stopping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214838399U (en) |
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2021
- 2021-03-22 CN CN202120577282.7U patent/CN214838399U/en active Active
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