CN212643544U - Large-shaft-diameter dry-type desulfurization mechanical seal - Google Patents
Large-shaft-diameter dry-type desulfurization mechanical seal Download PDFInfo
- Publication number
- CN212643544U CN212643544U CN202021100415.3U CN202021100415U CN212643544U CN 212643544 U CN212643544 U CN 212643544U CN 202021100415 U CN202021100415 U CN 202021100415U CN 212643544 U CN212643544 U CN 212643544U
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- China
- Prior art keywords
- ring
- mechanical seal
- axle sleeve
- shaft
- spring seat
- Prior art date
- 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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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 16
- 230000023556 desulfurization Effects 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 230000006835 compression Effects 0.000 claims description 23
- 238000007906 compression Methods 0.000 claims description 23
- 230000003068 static effect Effects 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000005406 washing Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Mechanical Sealing (AREA)
Abstract
The utility model discloses a big diameter of axle dry-type desulfurization mechanical seal belongs to mechanical seal technical field, including axle sleeve, pressure protection part and mechanical seal part, be equipped with the end cover on the axle sleeve, pressure protection part sets up the left end at mechanical seal structure, be equipped with first sealing washer on the inside wall of axle sleeve, mechanical seal part includes quiet ring, rotating ring, throw-out collar, second sealing washer and third sealing washer, the third sealing washer is installed on the lateral wall of the right-hand member of end cover, the pressure protection part cover is established on the axle sleeve and closely contradicts the cooperation with quiet ring, the right-hand member of axle sleeve still is equipped with location locking part, location locking part closely laminates with the axle sleeve. The utility model discloses a mechanical seal mechanism can seal the axle sleeve, and the diameter of axle is 220mm, mainly uses on the desulfurization circulating pump in major axis footpath, need not external washing and cooling system, and resources are saved guarantees life from technical parameter.
Description
Technical Field
The utility model relates to the technical field of mechanical seal, in particular to big shaft diameter dry-type desulfurization mechanical seal.
Background
Mechanical seals, also known as face seals, are devices that limit leakage of working fluid along a rotating shaft and generally consist of a rotating ring, a stationary ring, an elastic element, and an auxiliary seal ring. When the sealing device works, the sealing function is realized by utilizing two attaching surfaces of the rotating ring and the stationary ring which rotate relatively and the auxiliary seal, and the abrasion of the sealing surface can be automatically compensated by the elastic element.
Along with the increasing large-scale development of chemical fluid machinery, higher requirements are provided for the reliability of mechanical seal of large-shaft-diameter fluid equipment, the shaft diameter of the large-shaft-diameter fluid equipment often reaches 400-500 mm and is even larger, shaft channeling, thermal expansion, swinging amount and vibration are larger along with the large shaft diameter of the equipment, and the mechanical seal of the traditional structure type is prone to failure under the application condition.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a big shaft diameter dry-type desulfurization mechanical seal to the not enough of prior art.
In order to solve the above problem, the utility model provides a following technical scheme:
a large-shaft-diameter dry-type desulfurization mechanical seal comprises a shaft sleeve, a pressure protection component and a mechanical seal component, wherein an end cover is arranged on the shaft sleeve, the pressure protection component is sleeved on the shaft sleeve and is positioned inside the end cover, a mechanical seal mechanism is arranged at the right end of the shaft sleeve, the pressure protection component is arranged at the left end of the mechanical seal structure, a first seal ring is arranged on the inner side wall of the shaft sleeve, the mechanical seal component comprises a static ring, a dynamic ring, a push ring, a second seal ring and a third seal ring, the dynamic ring is arranged at the left end of the outer circumferential wall of the shaft sleeve, the dynamic ring is clamped in the shaft sleeve, the static ring is in interference fit with the dynamic ring, the end cover is sleeved outside the static ring, the second seal ring is arranged between the end cover and the static ring, the push ring is arranged at the right end of the static ring, the left end face of the push ring is in interference fit with the end of the, the pressure protection part is sleeved on the shaft sleeve and is in close interference fit with the static ring, the right end of the shaft sleeve is further provided with a positioning locking part, and the positioning locking part is tightly attached to the shaft sleeve.
Further, the pressure protection part includes spring holder, limiting plate, first screw, spring, protective sheath, fourth sealing washer and second screw, the left end and the end cover of spring holder closely laminate, the inner wall of spring holder is contradicted with the outer wall of throw-out collar and is cooperated, the protective sheath is installed between axle sleeve and spring holder, through first screwed connection between end cover and the spring holder, what the spring can be dismantled installs in the spring holder, the fourth sealing washer sets up between spring holder and quiet ring, the bottom of limiting plate is inserted and is established on the outer periphery wall of axle sleeve, the limiting plate passes through the second fix with screw on the spring holder.
Furthermore, the positioning and locking component comprises a standard spring washer, a first bolt, a left compression ring, a right compression ring and a clamping ring, the clamping ring is sleeved on the shaft sleeve, the left compression ring and the right compression ring are respectively sleeved at the left end and the right end of the clamping ring, the left compression ring and the right compression ring are fixed on the clamping ring through the first bolt, and the standard spring washer is arranged between the first bolt and the right compression ring.
Furthermore, a second bolt is arranged on the outer edge, close to the spring seat, of the spring seat, and the end cover and the spring seat are fixed through the second bolt.
Furthermore, the first screw and the second screw are both hexagon socket head cap screws.
Furthermore, the first bolt and the second bolt are both hexagon head bolts.
The utility model discloses an improve and provide a spring protection formula mechanical seal here, compare with prior art, have following improvement and advantage: can seal the axle sleeve through mechanical seal mechanism, the diameter of axle is 220mm, mainly uses on the desulfurization circulating pump of big diameter of axle, need not external washing cooling system, and resources are saved guarantees life from technical parameter.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
description of reference numerals: the sealing device comprises a first sealing ring 1, a shaft sleeve 2, a movable ring 3, a static ring 4, a second sealing ring 5, an end cover 6, a third sealing ring 7, a push ring 8, a spring seat 9, a first screw 10, a limiting plate 11, a second screw 12, a standard spring washer 13, a first bolt 14, a left compression ring 15, a right compression ring 16, a clamping ring 17, a spring 18, a protective sleeve 19, a fourth sealing ring 20, a second bolt 21, a pressure protection component 22, a mechanical sealing component 23 and a positioning locking component 24.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Referring to fig. 1, the large-shaft-diameter dry-type desulfurization mechanical seal comprises a shaft sleeve 2, a pressure protection component 22 and a mechanical seal component 23, wherein an end cover 6 is arranged on the shaft sleeve 2, the pressure protection component 22 is sleeved on the shaft sleeve 2 and is located inside the end cover 6, the mechanical seal mechanism is arranged at the right end of the shaft sleeve 2, the pressure protection component 22 is arranged at the left end of the mechanical seal structure, a first seal ring 1 is arranged on the inner side wall of the shaft sleeve 2, the mechanical seal component 23 comprises a stationary ring 4, a movable ring 3, a push ring 8, a second seal ring 5 and a third seal ring 7, the movable ring 3 is arranged at the left end of the outer circumferential wall of the shaft sleeve 2, the movable ring 3 is clamped in the shaft sleeve 2, the stationary ring 4 is in interference fit with the movable ring 3, the end cover 6 is sleeved outside the stationary ring 4, the second seal ring 5 is arranged between the end cover 6, the right-hand member at quiet ring 4 is installed to the throw-out collar 8, the left end face of throw-out collar 8 contradicts the cooperation with the tip of quiet ring 4, third sealing washer 7 is installed on the lateral wall of the right-hand member of end cover 6, pressure protection part 22 cover is established on axle sleeve 2 and closely contradicts the cooperation with quiet ring 4, the right-hand member of axle sleeve 2 still is equipped with location locking part 24, location locking part 24 closely laminates with axle sleeve 2, can seal axle sleeve 2 through the cooperation between axle sleeve 2, pressure protection part 22 and the mechanical seal part 23 three, and the shaft diameter is 220mm, mainly applies on the desulfurization circulating pump of major axis diameter, need not external washing cooling system, resources are saved, guarantees life in the application from the technical parameter that axle sleeve 2 is the structural component of main part, transmits power to rotating ring 3 through the driving pin, locks epaxial rotation along with the axle through locking device, the first sealing ring 1 plays a role in sealing between the mechanical sealing shaft sleeve 2 and a shaft, a main sealing system is formed between the movable ring 3 and the static ring 4 and other sealing ring components to form a main body of mechanical sealing, and the second sealing ring 5 can play a role in sealing between the end cover 6 and the static ring 4;
the end cover 6 is fixed on the pump body through bolts, provides main structural components for supporting the static ring 4, the spring seat 9 and other components, and provides stable supporting force for the whole mechanical seal;
the main function of the push ring 8 is installed between the static ring 4 and the sealing seat, and the spring 18 plays a role in preventing the static ring 4 from rotating, and the static ring 4 which is matched with the spring 18 to realize follows compensation and provides initial closing force.
The pressure protection component 22 comprises a spring seat 9, a limiting plate 11, a first screw 10, a spring 18, a protective sleeve 19, a fourth sealing ring 20 and a second screw 12, the left end of the spring seat 9 is tightly attached to the end cover 6, the inner wall of the spring seat 9 is in interference fit with the outer wall of the push ring 8, the protective sleeve 19 is installed between the shaft sleeve 2 and the spring seat 9, the end cover 6 and the spring seat 9 are connected through the first screw 10, the spring 18 can be detachably installed in the spring seat 9, the fourth sealing ring 20 is arranged between the spring seat 9 and the stationary ring 4, the bottom end of the limiting plate 11 is inserted in the outer circumferential wall of the shaft sleeve 2, the limiting plate 11 is fixed on the spring seat 9 through the second screw 12, the spring seat 9 is connected with the end cover 6, is a main supporting component of the spring 18 and the push ring 8, provides stable supporting force, and the limiting plate 11 is used for being connected, the sealing device has the positioning function, is arranged between the push ring 8 and the spring seat 9, provides initial closing force for mechanical sealing, provides certain power for following compensation for the static ring 4, protects the spring 18 from being polluted and blocked by leaked media, prolongs the service life of the mechanical seal, and realizes sealing between the static ring 4 and the protective sleeve 19 so as to prevent the leaked media from entering the spring 18 from the position and blocking the spring 18.
The positioning and locking part 24 comprises a standard spring washer 13, a first bolt 14, a left compression ring 15, a right compression ring 16 and a clamping ring 17, the clamping ring 17 is sleeved on the shaft sleeve 2, the left clamping ring 15 and the right clamping ring 16 are respectively sleeved at the left end and the right end of the clamping ring, the left compression ring 15 and the right compression ring 16 are fixed on a clamping ring 17 through a first bolt 14, the standard spring washer 13 is arranged between the first bolt 14 and the right compression ring 16 and is arranged on the shaft sleeve 2 and the clamping sleeve, the left compression ring 16 and the right compression ring 16 are locked by screws, the shaft sleeve 2 is tightly held on the shaft to rotate together, the left clamp ring 15, the right clamp ring 16 and the clamping ring 17 of the three are sequentially arranged on the shaft sleeve 2 and the clamping sleeve, the left clamp ring 16 and the right clamp ring 16 are locked by screws, the shaft sleeve 2 is tightly held on the shaft to rotate together, and the left clamp ring and the right clamp ring are arranged between the shaft sleeve 2 and the clamp rings to play a role in locking and transmitting power.
A second bolt 21 is arranged on the outer edge, close to the spring seat 9, of the spring seat 9, and the end cover 6 and the spring seat 9 are fixed through the second bolt 21.
The first screw 10 and the second screw 12 are both hexagon socket head cap screws, so that the mounting and the dismounting are convenient, the locking can be stably realized, and the tight locking is realized.
The first bolt 14 and the second bolt 21 are both hexagon bolts, so that the installation and the disassembly are convenient, the lock can be stably locked, and the tight locking is realized.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (6)
1. A large-shaft-diameter dry-type desulfurization mechanical seal is characterized in that: including axle sleeve (2), pressure protection part (22) and mechanical seal part (23), be equipped with end cover (6) on axle sleeve (2), pressure protection part (22) cover is established on axle sleeve (2) and is located inside end cover (6), mechanical seal mechanism sets up the right-hand member at axle sleeve (2), pressure protection part (22) sets up at mechanical seal structure's left end, be equipped with first sealing washer (1) on the inside wall of axle sleeve (2), mechanical seal part (23) are including quiet ring (4), rotating ring (3), thrust ring (8), second sealing washer (5) and third sealing washer (7), rotating ring (3) set up the left end at the outer periphery wall of axle sleeve (2), rotating ring (3) card is established in axle sleeve (2), quiet ring (4) contradict the cooperation with rotating ring (3), end cover (6) cover is established in the outside of quiet ring (4), second sealing washer (5) set up between end cover (6) and quiet ring (4), install the right-hand member at quiet ring (4) in throw-out collar (8), the left end face of throw-out collar (8) is contradicted the cooperation with the tip of quiet ring (4), third sealing washer (7) are installed on the lateral wall of the right-hand member of end cover (6), pressure protection part (22) cover is established on axle sleeve (2) and is closely contradicted the cooperation with quiet ring (4), the right-hand member of axle sleeve (2) still is equipped with location locking part (24), location locking part (24) closely laminate with axle sleeve (2).
2. The large-shaft-diameter dry desulfurization mechanical seal according to claim 1, characterized in that: the pressure protection component (22) comprises a spring seat (9), a limiting plate (11), a first screw (10), a spring (18), a protective sleeve (19), a fourth sealing ring (20) and a second screw (12), the left end of the spring seat (9) is tightly attached to the end cover (6), the inner wall of the spring seat (9) is in interference fit with the outer wall of the push ring (8), the protective sleeve (19) is arranged between the shaft sleeve (2) and the spring seat (9), the end cover (6) is connected with the spring seat (9) through a first screw (10), the spring (18) is detachably arranged in the spring seat (9), the fourth sealing ring (20) is arranged between the spring seat (9) and the static ring (4), the bottom end of the limit plate (11) is inserted on the outer circumferential wall of the shaft sleeve (2), the limiting plate (11) is fixed on the spring seat (9) through a second screw (12).
3. The large-shaft-diameter dry desulfurization mechanical seal according to claim 2, characterized in that: the positioning locking component (24) comprises a standard spring washer (13), a first bolt (14), a left compression ring (15), a right compression ring (16) and a clamping ring (17), the clamping ring (17) is sleeved on the shaft sleeve (2), the left compression ring (15) and the right compression ring (16) are respectively sleeved at the left end and the right end of the clamping ring, the left compression ring (15) and the right compression ring (16) are fixed on the clamping ring (17) through the first bolt (14), and the standard spring washer (13) is arranged between the first bolt (14) and the right compression ring (16).
4. The large-shaft-diameter dry desulfurization mechanical seal according to claim 3, characterized in that: and a second bolt (21) is arranged on the outer edge, close to the spring seat (9), of the spring seat, and the end cover (6) and the spring seat (9) are fixed through the second bolt (21).
5. The large-shaft-diameter dry desulfurization mechanical seal according to claim 3, characterized in that: the first screw (10) and the second screw (12) both adopt hexagon socket head cap screws.
6. The large-shaft-diameter dry desulfurization mechanical seal according to claim 4, characterized in that: the first bolt (14) and the second bolt (21) are both hexagon head bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021100415.3U CN212643544U (en) | 2020-06-15 | 2020-06-15 | Large-shaft-diameter dry-type desulfurization mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021100415.3U CN212643544U (en) | 2020-06-15 | 2020-06-15 | Large-shaft-diameter dry-type desulfurization mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212643544U true CN212643544U (en) | 2021-03-02 |
Family
ID=74790698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021100415.3U Expired - Fee Related CN212643544U (en) | 2020-06-15 | 2020-06-15 | Large-shaft-diameter dry-type desulfurization mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212643544U (en) |
-
2020
- 2020-06-15 CN CN202021100415.3U patent/CN212643544U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210302 |