CN220037026U - Leaf disc sealing device - Google Patents
Leaf disc sealing device Download PDFInfo
- Publication number
- CN220037026U CN220037026U CN202321584162.5U CN202321584162U CN220037026U CN 220037026 U CN220037026 U CN 220037026U CN 202321584162 U CN202321584162 U CN 202321584162U CN 220037026 U CN220037026 U CN 220037026U
- Authority
- CN
- China
- Prior art keywords
- impeller
- leaf disc
- groove
- sealing device
- shaped
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 19
- 229920001973 fluoroelastomer Polymers 0.000 claims abstract description 26
- 229920001971 elastomer Polymers 0.000 claims description 19
- 239000000428 dust Substances 0.000 abstract description 9
- 239000000779 smoke Substances 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
- F04D29/36—Blade mountings adjustable
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/083—Sealings especially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a leaf disc sealing device which comprises a leaf disc, an L-shaped tetrafluoro gasket and an O-shaped fluororubber ring, wherein a groove is formed in the outer side of the leaf disc, a fan movable blade is fixed at the top end of the leaf disc, a fixing structure comprises a compression ring, a ball, a bolt groove, a fixing bolt and a screw groove, the screw groove is formed in the bottom end of the leaf disc, and the compression ring is arranged at the bottom end of the screw groove. According to the utility model, the O-shaped fluororubber ring is arranged in the groove, and the L-shaped tetrafluorogasket is arranged in the impeller shell next, so that the L-shaped tetrafluorogasket and the O-shaped fluororubber ring seal the gap between the impeller and the impeller shell, dust or corrosive smoke is prevented from entering the impeller through the gap of the impeller, the damage of dust and smoke to the impeller handle is reduced, the hidden danger of blocking of the movable blades is reduced, meanwhile, the design is simple, the investment is low, the labor cost is greatly saved in the later stage, the structure is simple, the implementation is easy, and the sealing element is easy to replace.
Description
Technical Field
The utility model relates to the technical field of movable vane adjustable axial flow fans, in particular to a vane disk sealing device.
Background
The movable vane adjustable axial flow fan of the thermal power plant provides fuel wind for boiler combustion, keeps negative pressure of a hearth, and the air quantity of the fan needs to be matched with the boiler along with the load change of the boiler, so that the opening degree of the movable vane of the fan needs to be adjusted, in practical application, the condition that the switch of each movable vane of the fan is inconsistent can be met, the fan is abnormal in vibration and cannot safely and stably run, and the reason is that the blade handles for driving the movable vanes have the blocking condition caused by smoke corrosion or dust abrasion;
the existing fan movable vane has the disadvantages that the impeller is not sealed between the impeller and the impeller shell, dust or corrosive smoke easily enters the impeller, the vane handle and the bearing are worn or corroded, once the vane handle is corroded by the smoke or the dust is worn, the crank torque acting on the vane handle is increased, the crank sliding sleeve is caused, the vane handle cannot normally rotate, the movable vanes cannot be normally driven, the opening degree of each movable vane of the fan is inconsistent, the air flow is uneven, and the fan vibrates greatly and even cannot safely run.
Disclosure of Invention
First, the technical problem to be solved
The present utility model is directed to a leaf disc sealing device, which solves the above-mentioned problems.
(II) summary of the utility model
In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a leaf disc sealing device, includes leaf disc, L type tetrafluoro gasket and O type fluororubber circle, the outside of leaf disc is seted up flutedly, and the inside of recess is provided with O type fluororubber circle, the inside of leaf disc bottom is provided with fixed knot constructs, the outside of leaf disc is provided with L type tetrafluoro gasket, the outside of L type tetrafluoro gasket is provided with impeller shell, the both sides of L type tetrafluoro gasket all are provided with limit structure, the top of leaf disc is fixed with the fan movable vane, fixed knot constructs including clamping ring, ball, bolt groove, fixing bolt and helicoid, the inside in leaf disc bottom is seted up to the helicoid, the bottom of helicoid is provided with the clamping ring.
By means of the blade disc sealing device, the O-shaped fluororubber ring is arranged in the groove, the L-shaped tetrafluoro gasket is arranged in the impeller shell, the L-shaped tetrafluoro gasket and the O-shaped fluororubber ring seal gaps between the blade disc and the impeller shell, and dust or corrosive flue gas is prevented from entering the impeller through the blade disc gaps.
Preferably, the balls are arranged in the bottom end of the pressing ring, a bolt groove is formed in the bottom end of the pressing ring, and a fixing bolt is inserted in the bolt groove. The clamping ring is detached by rotating the fixing bolt, so that the O-shaped fluorine rubber ring can be directly sleeved in the groove, the clamping ring is installed next to prevent the O-shaped fluorine rubber ring from leaving the groove, and the clamping ring is locked and fixed by rotating the fixing bolt.
Preferably, the outer side wall of the fixing bolt is provided with external threads, and the inside of the screw groove is provided with internal threads matched with the external threads.
Preferably, the balls are arranged in the bottom end of the pressing ring, and the balls are distributed in a ring shape in the bottom end of the pressing ring.
Preferably, the limit structure comprises an inserting block, a clamping groove, a rubber clamping block and a slot, wherein the inserting block is fixed on two sides of the L-shaped tetrafluoro gasket, and the rubber clamping block is fixed in one side of the inserting block. The rubber clamping block is clamped into the rubber clamping block by inserting the inserting block into the clamping groove, the position of the inserting block is fixed, and the L-shaped tetrafluoro gasket is prevented from rotating by limiting the position of the L-shaped tetrafluoro gasket.
Preferably, a slot is arranged on the outer side of the plug block, and a clamping groove is formed in one side of the slot.
Preferably, a sliding structure is formed between the slot and the insert block, and a clamping structure is formed between the rubber clamping block and the clamping groove.
(III) beneficial effects
Compared with the prior art, the utility model has the beneficial effects that: the leaf disc sealing device has reasonable structure and has the following advantages:
(1) The O-shaped fluororubber ring is arranged in the groove, and then the L-shaped tetrafluorogasket is arranged in the impeller shell, so that the L-shaped tetrafluorogasket and the O-shaped fluororubber ring seal a gap between the impeller disc and the impeller shell, dust or corrosive flue gas is prevented from entering the impeller through the gap of the impeller disc, the damage of the dust and the flue gas to the blade handle is reduced, the hidden danger of blocking of the movable blade is reduced, meanwhile, the design is simple, the investment is low, the labor cost is greatly saved in the later stage, the structure is simple, the implementation is easy, and the sealing element is easy to replace;
(2) The O-shaped fluororubber ring is directly sleeved in the groove by rotating the fixing bolt to be detached, the O-shaped fluororubber ring is prevented from leaving the groove by installing the pressing ring, and the pressing ring is locked and fixed by rotating the fixing bolt, so that the O-shaped fluororubber ring replacement function of the O-shaped fluororubber ring device is realized, the O-shaped fluororubber ring is conveniently installed in the groove, and the O-shaped fluororubber ring is prevented from being torn due to the fact that the O-shaped fluororubber ring is arranged by being unfolded;
(3) Through the inside that inserts the draw-in groove with the inserted block, make in the rubber fixture block card goes into the rubber fixture block, with the fixed position of inserted block, from the position of restriction L type tetrafluoro gasket, prevent that L type tetrafluoro gasket from rotating, realized the installation limit function of this device from this, prevent at leaf disc pivoted in-process, O type fluororubber circle drives the inside rotation of L type tetrafluoro gasket at impeller casing, influence the sealed effect of device.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional elevation view of the present utility model;
FIG. 2 is a schematic top view of the present utility model;
FIG. 3 is an enlarged partial cross-sectional view of the structure of FIG. 1A according to the present utility model;
fig. 4 is a schematic top view of a limiting structure according to the present utility model.
Reference numerals in the drawings illustrate: 1. a leaf disc; 2. a fixed structure; 201. a compression ring; 202. a ball; 203. a bolt slot; 204. a fixing bolt; 205. a screw groove; 3. an L-shaped tetrafluoro gasket; 4. an impeller housing; 5. a limit structure; 501. inserting blocks; 502. a clamping groove; 503. a rubber clamping block; 504. a slot; 6. fan moving blades; 7. a groove; 8. an O-shaped fluorine rubber ring.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by one of ordinary skill in the art without inventive faculty, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Example 1
Referring to fig. 1 to 4, the present utility model provides a leaf disc sealing device, which includes a leaf disc 1, an L-shaped tetrafluoro gasket 3 and an O-shaped fluororubber ring 8, and is characterized in that: the outside of leaf disc 1 has seted up recess 7, and the inside of recess 7 is provided with O type fluororubber circle 8, the inside of leaf disc 1 bottom is provided with fixed knot constructs 2, the outside of leaf disc 1 is provided with L type tetrafluoro gasket 3, the outside of L type tetrafluoro gasket 3 is provided with impeller casing 4, the both sides of L type tetrafluoro gasket 3 all are provided with limit structure 5, the top of leaf disc 1 is fixed with fan movable vane 6, fixed knot constructs 2 includes clamping ring 201, the ball 202, bolt groove 203, fixing bolt 204 and helicoid 205, the inside at leaf disc 1 bottom is seted up to helicoid 205, the bottom of helicoid 205 is provided with clamping ring 201, the ball 202 is all installed to the inside of clamping ring 201 bottom, bolt groove 203 has been seted up to the inside of clamping ring 201 bottom, and the inside of bolt groove 203 is inserted and is equipped with fixing bolt 204, be provided with the external screw thread on the lateral wall of fixing bolt 204, and the inside of helicoid 205 is provided with the internal screw thread with a plurality of groups with external screw thread mutually supporting, the ball 202 is provided with a plurality of groups in the inside of clamping ring 201 bottom, and a plurality of groups of balls 202 are distributed in annular in the inside of clamping ring 201 bottom.
The working principle of the leaf disc sealing device based on the first embodiment is as follows: through turning out recess 7 in the side of impeller 1, install O type fluororubber circle 8 in the inside of recess 7 immediately, install L type tetrafluoro gasket 3 in the internally mounted of impeller casing 4 immediately, avoid preventing that O type fluororubber circle 8 and impeller casing 4 are direct to rub when fan movable vane 6 rotates, use impeller 1 to push down L type tetrafluoro gasket 3, prevent that L type tetrafluoro gasket 3 from deviating from when fan movable vane 6 rotates, seal the gap between impeller 1 and impeller casing 4 through L type tetrafluoro gasket 3 and O type fluororubber circle 8, prevent dust or corrosive flue gas from getting into the impeller through impeller 1 gap, through rotating fixing bolt 204, make fixing bolt 204 leave the inside of helicoidal 205, immediately tear down clamping ring 201, make O type fluororubber circle 8 can directly overlap in the inside of recess 7, shelter from the bottom of recess 7 through 201, prevent O type fluororubber circle 8 from leaving the inside of recess 7, use fixing bolt 204 to insert the inside of helicoidal 205, install the position fixing of ball 201, reduce the frictional force between L type tetrafluoro gasket 3 and L type tetrafluoro gasket 201 through rotating fixing bolt 202.
Example two
The embodiment comprises the following steps: the limit structure 5 comprises an inserting block 501, a clamping groove 502, a rubber clamping block 503 and a slot 504, wherein the inserting block 501 is fixed on two sides of the L-shaped tetrafluoro gasket 3, the rubber clamping block 503 is fixed in one side of the inserting block 501, the slot 504 is arranged on the outer side of the inserting block 501, the clamping groove 502 is formed in one side of the slot 504, a sliding structure is formed between the slot 504 and the inserting block 501, and a clamping structure is formed between the rubber clamping block 503 and the clamping groove 502.
In this embodiment, by holding the L-shaped tetrafluoro gasket 3, the insert 501 is aligned and inserted into the clamping groove 502, the insert 501 is inserted into the slot 504, the L-shaped tetrafluoro gasket 3 is prevented from rotating between the impeller housing 4 and the impeller disk 1 by restricting the position of the L-shaped tetrafluoro gasket 3, the rubber clamping block 503 is clamped into the rubber clamping block 503 by bending deformation, and the position of the insert 501 is fixed, so that the L-shaped tetrafluoro gasket 3 is not easy to shake in the impeller housing 4.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (7)
1. The utility model provides a leaf disc sealing device, includes leaf disc (1), L type tetrafluoro gasket (3) and O type fluororubber circle (8), its characterized in that: the utility model discloses a fan blade, including fan blade, impeller, fixed knot and spiral groove, recess (7) are seted up in the outside of impeller (1), and the inside of recess (7) is provided with O type fluororubber circle (8), the inside of impeller (1) bottom is provided with fixed knot and constructs (2), the outside of impeller (1) is provided with L type tetrafluoro gasket (3), the outside of L type tetrafluoro gasket (3) is provided with impeller casing (4), the both sides of L type tetrafluoro gasket (3) all are provided with limit structure (5), the top of impeller (1) is fixed with fan blade (6), fixed knot constructs (2) including clamping ring (201), ball (202), bolt groove (203), fixing bolt (204) and spiral groove (205), the inside in impeller (1) bottom is seted up in spiral groove (205), the bottom of spiral groove (205) is provided with clamping ring (201).
2. A leaf disc sealing device according to claim 1, characterized in that: balls (202) are arranged in the bottom end of the pressing ring (201), a bolt groove (203) is formed in the bottom end of the pressing ring (201), and a fixing bolt (204) is inserted into the bolt groove (203).
3. A leaf disc sealing device according to claim 1, characterized in that: external threads are arranged on the outer side wall of the fixing bolt (204), and internal threads matched with the external threads are arranged inside the screw groove (205).
4. A leaf disc sealing device according to claim 1, characterized in that: the ball (202) is provided with a plurality of groups in the inside of clamping ring (201) bottom, and a plurality of groups of balls (202) are in annular distribution in the inside of clamping ring (201) bottom.
5. A leaf disc sealing device according to claim 1, characterized in that: the limiting structure (5) comprises an inserting block (501), a clamping groove (502), a rubber clamping block (503) and a slot (504), wherein the inserting block (501) is fixed on two sides of the L-shaped tetrafluoro gasket (3), and the rubber clamping block (503) is fixed in one side of the inserting block (501).
6. A leaf disc sealing device according to claim 5, wherein: the outer side of the plug block (501) is provided with a slot (504), and one side of the slot (504) is provided with a clamping groove (502).
7. A leaf disc sealing device according to claim 5, wherein: a sliding structure is formed between the slot (504) and the insert block (501), and a clamping structure is formed between the rubber clamping block (503) and the clamping groove (502).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321584162.5U CN220037026U (en) | 2023-06-20 | 2023-06-20 | Leaf disc sealing device |
| DE202023105376.9U DE202023105376U1 (en) | 2023-06-20 | 2023-09-15 | Sealing device for blade disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321584162.5U CN220037026U (en) | 2023-06-20 | 2023-06-20 | Leaf disc sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220037026U true CN220037026U (en) | 2023-11-17 |
Family
ID=88697321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321584162.5U Active CN220037026U (en) | 2023-06-20 | 2023-06-20 | Leaf disc sealing device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN220037026U (en) |
| DE (1) | DE202023105376U1 (en) |
-
2023
- 2023-06-20 CN CN202321584162.5U patent/CN220037026U/en active Active
- 2023-09-15 DE DE202023105376.9U patent/DE202023105376U1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE202023105376U1 (en) | 2023-10-25 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |