CN204512428U - A kind of coal pulverizer becomes loading pull rod seal device - Google Patents
A kind of coal pulverizer becomes loading pull rod seal device Download PDFInfo
- Publication number
- CN204512428U CN204512428U CN201520129535.9U CN201520129535U CN204512428U CN 204512428 U CN204512428 U CN 204512428U CN 201520129535 U CN201520129535 U CN 201520129535U CN 204512428 U CN204512428 U CN 204512428U
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- China
- Prior art keywords
- sealing
- packing
- air compartment
- guide
- pull bar
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- Expired - Fee Related
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- 239000003245 coal Substances 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 84
- 238000012856 packing Methods 0.000 claims abstract description 44
- 230000008859 change Effects 0.000 claims abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model discloses a kind of coal pulverizer and become loading pull rod seal device, comprise sealing air compartment, become and load pull bar, be positioned at and load pull bar lower seal assembly for sealing to become for sealing to become to load black box on pull bar and be positioned at below sealing air compartment above sealing air compartment, described upper black box comprises pressure cap, pressure ring, packing, packing ring, upper Packing spring, housing and guide-localization part, described lower seal assembly comprises baffle plate, sealing seat and fixed block, sealing seat is between baffle plate and sealing air compartment, contact with baffle plate bottom sealing seat, top contacts with sealing air compartment, packing and sealing software are sealed and matched respectively at loading pull bar periphery with change.Possesses the advantage such as good sealing effect, service life length.
Description
Technical field
The utility model relates to industrial machinery technical field, particularly relates to a kind of coal pulverizer and becomes loading pull rod seal device.
Background technique
Cogeneration power plant is existing to be become in the tie-rod sealing parts loading coal pulverizer, pull bar is anterior, and coordinate with cone-shaped hood body space also can axial relative movement, rear portion adopts packing_seal mode usually, and middle part adopts the sealing of sealing air cavity structure, and sealing air passes into pressurized gas in chamber.But be in operation and easily occur that tie-rod sealing leaks powder defect, particularly produce period at the large load of power plant, because unit load needs, when defect occurs, coal pulverizer can not stop maintenance in time, and once maintenance, because the repair time is longer, labor intensity is excessive causes certain risk to unit safety operation again.On the other hand, entering due to mill slag in actual production process, namely causes wearing and tearing to pull bar, pollutes work on the spot environment again, therefore causes equipment repair and maintenance too frequent high cost.
Model utility content
The utility model its object is to provide a kind of coal pulverizer to become and loads pull rod seal device, possesses the advantage such as good sealing effect, service life length.
For realizing the utility model object, the technological scheme of employing is:
A kind of coal pulverizer becomes loading pull rod seal device, comprise sealing air compartment, become and load pull bar, be positioned at and load pull bar lower seal assembly for sealing to become for sealing to become to load black box on pull bar and be positioned at below sealing air compartment above sealing air compartment, it is characterized in that: described upper black box comprises pressure cap, pressure ring, packing, packing ring, housing, upper Packing spring and guide-localization part, housing and guide-localization part are positioned at above sealing air compartment, housing exterior walls lower end is provided with director element, and director element coordinates with guide-localization element and realizes guide and limit; Housing exterior walls top is provided with screw thread, and pressure cap inwall is provided with the screw thread that to match with housing exterior walls screw thread; Packing ring is positioned at housing inner bottom part, and packing is positioned at housing, and upper Packing spring one end is connected with packing, and the other end is connected with packing ring, and pressure ring is arranged between packing and pressure cap; Described lower seal assembly comprises baffle plate, sealing seat and fixed block, and sealing seat, between baffle plate and sealing air compartment, contacts with baffle plate bottom sealing seat, and top contacts with sealing air compartment; Be fixedly connected with by fixed block between baffle plate with sealing air compartment, sealing seat is ring-type, and its inwall is provided with the conical surface, sealing software is provided with in sealing seat, sealing software outer wall is provided with the conical surface that to match with sealing seat conical surface of inboard wall, be provided with lower seal spring in sealing seat, lower seal spring one end is connected with sealing software, and the other end is connected with sealing seat; Packing and sealing software load pull bar periphery with change respectively and are sealed and matched.Further, described sealing software internal diameter is provided with circular groove, and circular groove end face has good wear-resisting property, can improve the working life of sealing software.
Further, described guide-localization part comprises circular column, and circular column outer wall is provided with spacing guide ring, and inwall is fixed by screws in above sealing air compartment; Described director element comprises two guide rings, and two guide rings are arranged on housing exterior walls, and the groove formed between two guide rings matches with spacing guide ring.Be conducive to realizing housing displacement, avoid housing covariant to load pull bar and move vertically.
The beneficial effects of the utility model: upper black box sealing becomes loading pull bar, compressed packing by the upper Packing spring moment being in compressive state, and improved to become and load tie-rod sealing performance, black box working life in increase, by screwing out pressure cap, be convenient for changing the Sealings such as packing.When becoming loading pull bar and moving up, coordinated with director element by guide-localization part, avoid black box to follow change loading pull bar and move up, sealing cannot be realized.Lower seal component sealing becomes loading pull bar, promote sealing software by lower seal spring, sealing software and sealing seat cone match, thus make the change of sealing software compression load pull bar, effectively prevent Sealing from cannot realize sealing after Long-Time Service wearing and tearing, realize automatic compensation sealing.
Accompanying drawing explanation
Fig. 1 is that a kind of coal pulverizer becomes the structural representation loading pull rod seal device.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
A kind of coal pulverizer becomes loading pull rod seal device as shown in Figure 1, comprises becoming loading pull bar 1, pressure cap 2, pressure ring 3, packing 9, packing ring 4, upper Packing spring 5, sealing software 7, lower seal spring 8, baffle plate 10, fixed block 11, sealing air compartment 13, circular column 14, screw 15, sealing seat 6, housing 16, spacing guide ring and guide ring.Described upper black box comprises pressure cap 2, pressure ring 3, packing 9, packing ring 4, housing 16, upper Packing spring 5 and guide-localization part, housing 16 and guide-localization part are positioned at above sealing air compartment 13, housing 16 outer wall lower end is provided with director element, and director element coordinates with guide-localization element and realizes guide and limit; Housing 16 outer wall top is provided with screw thread, and pressure cap 2 inwall is provided with the screw thread that to match with housing 16 outer wall thread; Packing ring 4 is positioned at housing 16 inner bottom part, and packing 9 is positioned at housing 16, and upper Packing spring 5 one end is connected with packing 9, and the other end is connected with packing ring 4, pressure ring 3 be arranged on packing 9 and pressure cap 2 between; Described lower seal assembly comprises baffle plate 10, sealing seat 6 and fixed block 11, and sealing seat 6, between baffle plate 10 and sealing air compartment 13, contacts with baffle plate 10 bottom sealing seat 6, and top contacts with sealing air compartment 13; Be fixedly connected with by fixed block 11 between baffle plate 10 with sealing air compartment 10, sealing seat 6 is ring-type, and its inwall is provided with the conical surface, sealing software 7 is provided with in sealing seat 6, sealing software 7 outer wall is provided with the conical surface that to match with sealing seat 6 conical surface of inboard wall, be provided with lower seal spring 8 in sealing seat 6, lower seal spring 8 one end is connected with sealing software 7, and the other end is connected with sealing seat 6; Packing 9 and sealing software 7 load pull bar 1 periphery with change respectively and are sealed and matched.
Guide-localization part comprises circular column 14, and circular column 14 outer wall is provided with spacing guide ring, and inwall is fixed on above sealing air compartment 13 by screw 15; Described director element comprises two guide rings, and two guide rings are arranged on housing 16 outer wall, and the groove formed between two guide rings matches with spacing guide ring.Be conducive to realizing housing 16 displacement, avoid housing 16 covariant to load pull bar 1 and move vertically.Described sealing software 7 internal diameter is provided with circular groove, and circular groove end face has good wear-resisting property, can improve the working life of sealing software 7.
Working principle: upper black box sealing becomes loading pull bar 1, makes pressure ring 3 compress packing 9 by screwing pressure cap 2, avoids long term seal that packing 9 is worn and torn and causes the shortcomings such as packing 9 loosens.By screwing out pressure cap 2, be convenient for changing Sealing such as packing 9 grade.When becoming loading pull bar 1 and moving up, coordinated with director element by guide-localization part, avoid black box to follow change loading pull bar 1 and move up, sealing cannot be realized.Lower seal spring 8 promotes to seal software 7, sealing software 7 and sealing seat 6 cone match, thus makes sealing software 7 compression become loading pull bar 1, effectively prevents Sealing from cannot realize sealing after Long-Time Service wearing and tearing, realizes automatic compensation sealing.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. a coal pulverizer becomes loading pull rod seal device, comprise sealing air compartment, become and load pull bar, be positioned at and load pull bar lower seal assembly for sealing to become for sealing to become to load black box on pull bar and be positioned at below sealing air compartment above sealing air compartment, it is characterized in that: described upper black box comprises pressure cap, pressure ring, packing, packing ring, housing, upper Packing spring and guide-localization part, housing and guide-localization part are positioned at above sealing air compartment, housing exterior walls lower end is provided with director element, and director element coordinates with guide-localization element and realizes guide and limit; Housing exterior walls top is provided with screw thread, and pressure cap inwall is provided with the screw thread that to match with housing exterior walls screw thread; Packing ring is positioned at housing inner bottom part, and packing is positioned at housing, and upper Packing spring one end is connected with packing, and the other end is connected with packing ring, and pressure ring is arranged between packing and pressure cap; Described lower seal assembly comprises baffle plate, sealing seat and fixed block, and sealing seat, between baffle plate and sealing air compartment, contacts with baffle plate bottom sealing seat, and top contacts with sealing air compartment; Be fixedly connected with by fixed block between baffle plate with sealing air compartment, sealing seat is ring-type, and its inwall is provided with the conical surface, sealing software is provided with in sealing seat, sealing software outer wall is provided with the conical surface that to match with sealing seat conical surface of inboard wall, be provided with lower seal spring in sealing seat, lower seal spring one end is connected with sealing software, and the other end is connected with sealing seat; Packing and sealing software load pull bar periphery with change respectively and are sealed and matched.
2. coal pulverizer according to claim 1 becomes loading pull rod seal device, it is characterized in that: described guide-localization part comprises circular column, and circular column outer wall is provided with spacing guide ring, and inwall is fixed by screws in above sealing air compartment; Described director element comprises two guide rings, and two guide rings are arranged on housing exterior walls, and the groove formed between two guide rings matches with spacing guide ring.
3. coal pulverizer according to claim 1 becomes loading pull rod seal device, it is characterized in that: described sealing software internal diameter is provided with circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520129535.9U CN204512428U (en) | 2015-03-06 | 2015-03-06 | A kind of coal pulverizer becomes loading pull rod seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520129535.9U CN204512428U (en) | 2015-03-06 | 2015-03-06 | A kind of coal pulverizer becomes loading pull rod seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204512428U true CN204512428U (en) | 2015-07-29 |
Family
ID=53710408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520129535.9U Expired - Fee Related CN204512428U (en) | 2015-03-06 | 2015-03-06 | A kind of coal pulverizer becomes loading pull rod seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204512428U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034387A (en) * | 2015-09-06 | 2015-11-11 | 成都思维智造科技有限公司 | Spray head structure of combined 3D printer |
| CN105034390A (en) * | 2015-09-06 | 2015-11-11 | 成都思维智造科技有限公司 | Nozzle of large-size 3D (Three Dimensional) printer |
| CN105034385A (en) * | 2015-09-06 | 2015-11-11 | 成都思维智造科技有限公司 | Spray head structure of 3D printer |
| CN105034382A (en) * | 2015-09-06 | 2015-11-11 | 成都思维智造科技有限公司 | Environment-friendly spray head of 3D printer |
| CN105034388A (en) * | 2015-09-06 | 2015-11-11 | 成都思维智造科技有限公司 | Spray head of large 3D printer |
| CN107469943A (en) * | 2017-09-05 | 2017-12-15 | 龙岩亿丰机械科技有限公司 | Grinding roller pull rod seal device |
| WO2020239268A1 (en) | 2019-05-29 | 2020-12-03 | General Electric Technology Gmbh | Self-compensating sealing arrangement for bowl mill |
-
2015
- 2015-03-06 CN CN201520129535.9U patent/CN204512428U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105034387A (en) * | 2015-09-06 | 2015-11-11 | 成都思维智造科技有限公司 | Spray head structure of combined 3D printer |
| CN105034390A (en) * | 2015-09-06 | 2015-11-11 | 成都思维智造科技有限公司 | Nozzle of large-size 3D (Three Dimensional) printer |
| CN105034385A (en) * | 2015-09-06 | 2015-11-11 | 成都思维智造科技有限公司 | Spray head structure of 3D printer |
| CN105034382A (en) * | 2015-09-06 | 2015-11-11 | 成都思维智造科技有限公司 | Environment-friendly spray head of 3D printer |
| CN105034388A (en) * | 2015-09-06 | 2015-11-11 | 成都思维智造科技有限公司 | Spray head of large 3D printer |
| CN107469943A (en) * | 2017-09-05 | 2017-12-15 | 龙岩亿丰机械科技有限公司 | Grinding roller pull rod seal device |
| WO2020239268A1 (en) | 2019-05-29 | 2020-12-03 | General Electric Technology Gmbh | Self-compensating sealing arrangement for bowl mill |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20160306 |