CN109944944A - A kind of box-like packing seal structure of novel coal mill dynamic group - Google Patents
A kind of box-like packing seal structure of novel coal mill dynamic group Download PDFInfo
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- CN109944944A CN109944944A CN201910288017.4A CN201910288017A CN109944944A CN 109944944 A CN109944944 A CN 109944944A CN 201910288017 A CN201910288017 A CN 201910288017A CN 109944944 A CN109944944 A CN 109944944A
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- packing seal
- letter
- gland
- packing
- seal
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Links
- 238000012856 packing Methods 0.000 title claims abstract description 50
- 239000003245 coal Substances 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 210000004907 gland Anatomy 0.000 claims abstract description 21
- 230000000694 effects Effects 0.000 claims abstract description 6
- 230000004323 axial length Effects 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000009958 sewing Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of box-like packing seal structure of novel coal mill dynamic group, including big axis, big axis surface pivots connect sealing structure, and the sealing structure includes packing seal letter, labyrinth teeth seal structure, airtight and watertight padding, gland and sealing flange composition；The packing seal letter inner wall is equipped with the groove to match with labyrinth teeth seal structure, and labyrinth teeth seal structure is embedded on packing seal letter inner wall；The gland is mutually matched with packing seal letter, and activity is plugged on packing seal letter side；The airtight and watertight padding is located at packing seal letter and gland matching and is rotatablely connected with big axis；Packing seal letter surface seal with screwed joint flange.This structure can effectively eliminate original clearance seal, reduce sewing for sealing air to the maximum extent, and easy to use, overhaul process is simple, and after installation is in place, later maintenance no longer needs to disassembly gland packing box device, it is only necessary to replace airtight and watertight padding.
Description
Technical field
The present invention relates to coal pulverizer, specifically a kind of box-like packing seal structure of novel coal mill dynamic group.
Background technique
Existing coal pulverizer (Zhu Zhi Shanghai Heavy machinery plant HP1063 type coal pulverizer), the master of former speed reducer and coal pulverizer transmission
Sealing is clearance fit sealing, i.e., adjusts the gap between sealing plate and transmission shaft by three-layer sealed plate to reach sealing
Effect.
But since this prototype structure for reaching sealing by clearance fit designs unreasonable problem, there certainly will be biggish leakage
Let out gap, the sealing air of 10Kpa or so caused largely to be leaked to the external world by larger fit clearance, cause sealing air effect it is poor,
Very ear-piercing noise (with up to 106 decibels of sound level meter detection), while also polluted peripheral equipment.
Summary of the invention
There are this followings for present equipment (Zhu Zhi Shanghai Heavy machinery plant HP1063 type coal pulverizer) as can be seen from above
It is insufficient:
1. at coal pulverizer speed reducer and the big axis of coal pulverizer transmission, a large amount of sealing air leakage problems.
2. after sealing air is sewed, sealing ventilation pressure loss is low, the equipment life for needing sealing air to protect reduces problem.
3. surrounding enviroment pollution problem, the i.e. more problems of neighbouring dust deposit.
4. most importantly solving the very ear-piercing high-decibel noise problem in scene, through on-site test, ambient noise should be gone out
Up to 106 decibels of value.
5. process is tedious for original multiple sealing plate adjustment, labour is larger, needs 5 people cooperation that could complete.
A kind of technical solution provided by the invention in order to solve the above problem are as follows: box-like packing seal of novel coal mill dynamic group
Structure, including big axis, big axis surface pivots connect sealing structure, and the sealing structure includes packing seal letter, labyrinth teeth sealed knot
Structure, airtight and watertight padding, gland and sealing flange composition；
The packing seal letter inner wall is equipped with the groove to match with labyrinth teeth seal structure, and labyrinth teeth seal structure is embedded in
On packing seal letter inner wall；
The gland is mutually matched with packing seal letter, and activity is plugged on packing seal letter side；
The airtight and watertight padding is located at packing seal letter and gland matching and is rotatablely connected with big axis；
Packing seal letter surface seal with screwed joint flange.
As an improvement, the labyrinth teeth seal structure is at least one layer of.
As an improvement, the axial length of the airtight and watertight padding is mutually matched with gland by packing seal letter and is limited,
The packing seal letter and gland are bolted relative position.
As an improvement, the airtight and watertight padding is at least one layer of.
Technological merit provided by the invention is as follows:
1. effectively eliminating original clearance seal, sewing for sealing air is reduced to the maximum extent.
2. sealing air boost in pressure 1.0-3.0Kpa substantially prolongs the service life of coal pulverizer sealing spare part.
3. site environment noise figure is down to 80dB (A) by 106dB (A), live inspection and service personnel are greatly improved
Working environment embodies the business philosophy of " people-oriented ".
4. sealing air is no longer sewed, equipment surrounding sanitation is controlled, and health level increases substantially.
5. novel sealing stuffing box structure is simple, easy to use, overhaul process is simple, and after installation is in place, later maintenance is not necessarily to
Gland packing box device is dismantled again, it is only necessary to replace airtight and watertight padding, 2-3 people can complete this work, therefore, manually
It is substantially reduced with the maintenance cost of spare part.
Detailed description of the invention
Fig. 1 is structure of the invention schematic illustration；
It is as shown in the figure: 1. packing seal letters；3. sealing flange；4. bolt；6. gland；8. airtight and watertight padding；10. labyrinth
Tooth seal structure；11. big axis
Specific embodiment
It is further to the present invention with reference to the accompanying drawing to be illustrated.
In conjunction with a kind of box-like packing seal structure of novel coal mill dynamic group of attached drawing, including big axis 11, big 11 surface of axis turns
Dynamic connection sealing structure, sealing structure include packing seal letter 1, labyrinth teeth seal structure 10, airtight and watertight padding 8, gland 6 and
Sealing flange 3 forms；
1 inner wall of packing seal letter is equipped with the groove to match with labyrinth teeth seal structure 10, and labyrinth teeth seal structure 10 is inlayed
In on 1 inner wall of packing seal letter；
Gland 6 is mutually matched with packing seal letter 1, and activity is plugged on 1 side of packing seal letter；
Airtight and watertight padding 8 is located at packing seal letter 1 and 6 matching of gland and is rotatablely connected with big axis 11；
1 surface seal with screwed joint flange 3 of packing seal letter.
As an improvement, labyrinth teeth seal structure 10 is three layers.
As an improvement, the axial length of airtight and watertight padding 8 is mutually matched with gland 6 by packing seal letter 1 and is limited, fill out
Material sealed letter 1 and gland 6 are bolted relative position.
As an improvement, the airtight and watertight padding 8 is three layers.
It is done herein to explain, is driven the prototype structure of big 11 clearance seal of axis, weight by changing former speed reducer and coal pulverizer
It is newly designed as a kind of box-like packing seal structure of novel coal mill dynamic group, utilizes the fixation spiral shell of original structure design dynamic sealing plate
Combined stuffing sealed letter 1 is fixed on coal pulverizer lower part by keyhole, i.e., at big 11 sealing of axis.
This box-like packing seal letter 1 of dynamic group is four segments combined structures, passes through a pair between every section of packing seal letter 1
The structure of sealing flange 3 and two sets of connection composition complete sets of bolt 4.Inside packing seal letter 1, with big axis 11 close to it is upper
Portion, design have three layers of fixed labyrinth teeth seal structure 10, reach depressurization step by step, design multilayer in 1 side of packing seal letter
Airtight and watertight padding 8 and smear high temperature resistant lubricating grease, these airtight and watertight paddings 8 are by the pressuring actions of four sections of glands 6, by multilayer
The big axis 11 of airtight and watertight padding 8 and rotation is directly in close contact, and plays the role of being fully sealed.
The present invention and its embodiments have been described above, this description is no restricted, shown in the drawings
Only one of embodiments of the present invention, actual structure is not limited to this.All in all if the ordinary skill of this field
Personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution phase
As frame mode and embodiment, be within the scope of protection of the invention.
Claims (4)
1. a kind of box-like packing seal structure of novel coal mill dynamic group, including big axis, it is characterised in that: big axis surface pivots connect
Sealing structure is connect, the sealing structure includes packing seal letter, labyrinth teeth seal structure, airtight and watertight padding, gland and sealing
Flange composition；
The packing seal letter inner wall is equipped with the groove to match with labyrinth teeth seal structure, and labyrinth teeth seal structure is embedded in filler
On sealed letter inner wall；
The gland is mutually matched with packing seal letter, and activity is plugged on packing seal letter side；
The airtight and watertight padding is located at packing seal letter and gland matching and is rotatablely connected with big axis；
Packing seal letter surface seal with screwed joint flange.
2. a kind of box-like packing seal structure of novel coal mill dynamic group according to claim 1, it is characterised in that: described
Labyrinth teeth seal structure it is at least one layer of.
3. a kind of box-like packing seal structure of novel coal mill dynamic group according to claim 1, it is characterised in that: described
The axial length of airtight and watertight padding is mutually matched with gland by packing seal letter and is limited, the packing seal letter and filler pressure
Lid is bolted relative position.
4. a kind of box-like packing seal structure of novel coal mill dynamic group according to claim 1, it is characterised in that: described
Airtight and watertight padding is at least one layer of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910288017.4A CN109944944A (en) | 2019-04-04 | 2019-04-04 | A kind of box-like packing seal structure of novel coal mill dynamic group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910288017.4A CN109944944A (en) | 2019-04-04 | 2019-04-04 | A kind of box-like packing seal structure of novel coal mill dynamic group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109944944A true CN109944944A (en) | 2019-06-28 |
Family
ID=67014740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910288017.4A Pending CN109944944A (en) | 2019-04-04 | 2019-04-04 | A kind of box-like packing seal structure of novel coal mill dynamic group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109944944A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB332596A (en) * | 1929-04-24 | 1930-07-24 | Harold Lyall Mason | Improvements in, or relating to, gland sealing devices |
| JP2891993B1 (en) * | 1998-04-27 | 1999-05-17 | 日本ピラー工業株式会社 | Shaft sealing device |
| CN204729336U (en) * | 2015-05-26 | 2015-10-28 | 国网山东省电力公司电力科学研究院 | A kind of device improving labyrinth seal boiler feed pump shaft end seal effect |
| CN206626182U (en) * | 2017-04-06 | 2017-11-10 | 张剑飞 | A kind of packing box seal structure |
| CN108443171A (en) * | 2018-03-13 | 2018-08-24 | 浙江宣达特种合金流程装备股份有限公司 | A kind of low temperature recycling cyclic acid pump shaft seal structure |
| CN208364357U (en) * | 2018-06-08 | 2019-01-11 | 上海凯泉泵业（集团）有限公司 | A kind of small flow high-temperature molten salt pump seal cooling structure |
| CN209943511U (en) * | 2019-04-04 | 2020-01-14 | 华能国际电力股份有限公司营口电厂 | Novel coal pulverizer developments combination formula packing structure |
-
2019
- 2019-04-04 CN CN201910288017.4A patent/CN109944944A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB332596A (en) * | 1929-04-24 | 1930-07-24 | Harold Lyall Mason | Improvements in, or relating to, gland sealing devices |
| JP2891993B1 (en) * | 1998-04-27 | 1999-05-17 | 日本ピラー工業株式会社 | Shaft sealing device |
| CN204729336U (en) * | 2015-05-26 | 2015-10-28 | 国网山东省电力公司电力科学研究院 | A kind of device improving labyrinth seal boiler feed pump shaft end seal effect |
| CN206626182U (en) * | 2017-04-06 | 2017-11-10 | 张剑飞 | A kind of packing box seal structure |
| CN108443171A (en) * | 2018-03-13 | 2018-08-24 | 浙江宣达特种合金流程装备股份有限公司 | A kind of low temperature recycling cyclic acid pump shaft seal structure |
| CN208364357U (en) * | 2018-06-08 | 2019-01-11 | 上海凯泉泵业（集团）有限公司 | A kind of small flow high-temperature molten salt pump seal cooling structure |
| CN209943511U (en) * | 2019-04-04 | 2020-01-14 | 华能国际电力股份有限公司营口电厂 | Novel coal pulverizer developments combination formula packing structure |
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