CN107631029A - A kind of secondary liquid packing sealing structure applied to absorption tower side stir device - Google Patents
A kind of secondary liquid packing sealing structure applied to absorption tower side stir device Download PDFInfo
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- CN107631029A CN107631029A CN201710990573.7A CN201710990573A CN107631029A CN 107631029 A CN107631029 A CN 107631029A CN 201710990573 A CN201710990573 A CN 201710990573A CN 107631029 A CN107631029 A CN 107631029A
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- packing
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- gland
- seal
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Abstract
The invention discloses a kind of secondary liquid packing sealing structure applied to absorption tower side stir device, it includes rotating shaft of stirrer, the packing_seal cavity for being set in rotating shaft of stirrer periphery, stationary gland, inlay card sliding bearing in gland through hole, spiral shell dress sealing throat bushing in the middle part of cavity through hole, space of the cavity through hole between sliding bearing and sealing throat bushing is packing chamber, packing_seal cavity upper surface opens up online charging aperture, and packing_seal cavity lower surface opens up steam vent；For cavity through hole in the space of sealing throat bushing rear end to rinse space, packing_seal chamber outer surface offers the interior flushing water hole connected with rinsing space.The present invention has advantages below, specifically：1st, liquid packing is to the required precision of annular seal space and axle without harshness；2nd, do not shut down and online charging can be achieved, reach zero leakage and reach energy-saving and environmentally friendly requirement；3rd, when mechanical seal is broken down, when can not change online, secondary seal can be achieved.
Description
Technical field
The present invention relates to absorption tower side stir device technical field, more particularly to one kind to stir applied to absorption tower side entering type
Mix the secondary liquid packing sealing structure of device.
Background technology
Various forms of side entering type absorption towers agitator is currently there are, in the thermal power plant in China, big portion
It is all the import agitator installed to divide, and to avoid stirred slurries seepage, the agitating shaft of agitator is typically all fitted with accordingly
Mechanical seal, and mechanical seal can be changed online when mechanical seal leaks.
However, for existing agitator mechanical seal, during the use of reality, occur letting out for mechanical seal unavoidably
Leakage, during leakage, it would be desirable on the premise of absorption tower operation is not stopped, change mechanical seal online, filled on general agitator axle
A kind of shutoff valve of back taper, it is possible to achieve online pull agitator axle, by the effect of shutoff valve, annular seal space can be closed, this
When absorption tower in slurries will not flow out outside, at this moment can safely change mechanical seal.
After agitator mechanical seal leakage, if the shutoff valve damage of agitator axle and axle pull do not come out, this opportunity
Tool sealing can not complete the function changed online, by normal service method, can only stop in the case of the clean plasm of absorption tower changing machine again
Tool seals.Blowing out will be caused by stopping tower, and this brings great economic loss to normal production.
The content of the invention
The purpose of the present invention is to solve the shortcomings of the prior art and one kind is provided and is applied to absorption tower side stir device
Secondary liquid packing sealing structure, should applied to absorption tower side stir device secondary liquid packing sealing structure have with
Lower advantage, specifically：1st, liquid packing is to the required precision of annular seal space and axle without harshness；2nd, do not shut down and online add can be achieved
Material, reaches zero leakage and reaches energy-saving and environmentally friendly requirement；3rd, when mechanical seal is broken down, can not change online
When, secondary seal can be achieved.
To reach above-mentioned purpose, the present invention is achieved through the following technical solutions.
A kind of secondary liquid packing sealing structure applied to absorption tower side stir device, include in horizontal cross cloth
The rotating shaft of stirrer put, rotating shaft of stirrer are fitted with packing_seal cavity, the stationary gland positioned at packing_seal cavity front,
Stationary gland is anchored on the front end face of packing_seal cavity by lock screw, and the inside of packing_seal cavity offers front and rear complete
The cavity through hole run through entirely, the inside of stationary gland offer it is front and rear completely through gland through hole, rotating shaft of stirrer wears successively
Overpressure cap through hole, cavity through hole；
Inlay card has the sliding bearing for being set in rotating shaft of stirrer periphery in the gland through hole of stationary gland, and sliding bearing offers footpath
To completely through and with sliding bearing the bearing oiling hole that connects of centre bore, stationary gland offers to be connected with bearing oiling hole
Gland tank filler sleeve；
Be screwed with the middle part of cavity through hole be set in rotating shaft of stirrer periphery sealing throat bushing, cavity through hole in sliding bearing with
Space between sealing throat bushing is packing chamber, and the upper surface of packing_seal cavity offers online with packing chamber
Charging aperture, the lower surface of packing_seal cavity offer the steam vent with packing chamber；
In the space of sealing throat bushing rear end to rinse space, the outer surface of packing_seal cavity offers and rinsed cavity through hole
The interior flushing water hole of space connection.
Wherein, the sliding bearing is anchored in the gland through hole of stationary gland by holding screw.
Wherein, the rear end face of the packing_seal cavity is offered around ring in the card of the cavity through hole back-end mouth periphery
Groove is held, fluororubber O-type ring is embedded with support slot.
Beneficial effects of the present invention are：A kind of secondary liquid applied to absorption tower side stir device of the present invention
Packing sealing structure, its include in horizontal cross arrange rotating shaft of stirrer, rotating shaft of stirrer be fitted with packing_seal cavity,
Stationary gland positioned at packing_seal cavity front, stationary gland are anchored on the front end of packing_seal cavity by lock screw
Face, the inside of packing_seal cavity offer it is front and rear completely through cavity through hole, the inside of stationary gland offers front and rear complete
The gland through hole run through entirely, rotating shaft of stirrer sequentially pass through gland through hole, cavity through hole；Inlay card in the gland through hole of stationary gland
Have be set in rotating shaft of stirrer periphery sliding bearing, sliding bearing offer radially completely through and with sliding bearing center
The bearing oiling hole of hole connection, stationary gland offer the gland tank filler sleeve connected with bearing oiling hole；The middle part of cavity through hole
It is screwed with the sealing throat bushing for being set in rotating shaft of stirrer periphery, sky of the cavity through hole between sliding bearing and sealing throat bushing
Between be packing chamber, the upper surface of packing_seal cavity offers the online charging aperture with packing chamber, packing_seal chamber
The lower surface of body offers the steam vent with packing chamber；Cavity through hole is empty to rinse in the space of sealing throat bushing rear end
Between, the outer surface of packing_seal cavity offers the interior flushing water hole connected with rinsing space.Pass through said structure design, this hair
It is bright that there is advantages below, specifically：1st, liquid packing is to the required precision of annular seal space and axle without harshness；2nd, do not shut down and can be achieved
Online charging, reaches zero leakage and reaches energy-saving and environmentally friendly requirement；3rd, can not be online when mechanical seal is broken down
During replacing, secondary seal can be achieved.
Brief description of the drawings
The present invention is further detailed below with accompanying drawing, but the embodiment in accompanying drawing is not formed to this hair
Bright any restrictions.
Fig. 1 is the structural representation of the present invention.
Include in Fig. 1：
1 --- rotating shaft of stirrer 2 --- packing_seal cavity
21 --- cavity through hole 22 --- packing chambers
23 --- online charging aperture 24 --- steam vents
25 --- rinsing space 26 --- interior flushing water holes
3 --- stationary gland 31 --- gland through holes
32 --- gland tank filler sleeve 4 --- sliding bearings
41 --- bearing oiling holes 5 --- seal throat bushing
6 --- holding screw 7 --- fluororubber O-type rings.
Embodiment
With reference to specific embodiment, the present invention will be described.
As shown in figure 1, a kind of secondary liquid packing sealing structure applied to absorption tower side stir device, include and be in
The rotating shaft of stirrer 1 of horizontal cross arrangement, rotating shaft of stirrer 1 are fitted with packing_seal cavity 2, before packing_seal cavity 2
The stationary gland 3 of side, stationary gland 3 are anchored on the front end face of packing_seal cavity 2, packing_seal cavity by lock screw
2 inside offer it is front and rear completely through cavity through hole 21, the inside of stationary gland 3 offer it is front and rear completely through gland
Through hole 31, rotating shaft of stirrer 1 sequentially pass through gland through hole 31, cavity through hole 21.
Wherein, inlay card has the sliding bearing 4 for being set in the periphery of rotating shaft of stirrer 1 in the gland through hole 31 of stationary gland 3, sliding
Dynamic bearing 4 offer radially completely through and with sliding bearing 4 the bearing oiling hole 41 that connects of centre bore, stationary gland 3 opens
Provided with the gland tank filler sleeve 32 connected with bearing oiling hole 41.
Further, the middle part of cavity through hole 21 is screwed with the sealing throat bushing 5 for being set in the periphery of rotating shaft of stirrer 1,
Space of the cavity through hole 21 between sliding bearing 4 and sealing throat bushing 5 is packing chamber 22, the upper table of packing_seal cavity 2
Face offers the online charging aperture 23 connected with packing chamber 22, and the lower surface of packing_seal cavity 2 offers and packing chamber
The steam vent 24 of 22 connections.
In addition, cavity through hole 21 is to rinse space 25 in the space of sealing throat bushing 5 rear end, outside packing_seal cavity 2
Surface offers the interior flushing water hole 26 connected with rinsing space 25.
It need to be explained further, sliding bearing 4 is anchored in the gland through hole 31 of stationary gland 3 by holding screw 6.
It should further be noted that the rear end face of packing_seal cavity 2 is offered around ring in the open rearward end of cavity through hole 21 periphery
Support slot, is embedded with fluororubber O-type ring 7 in support slot.
It is installed on online in the mechanical seal of original damage by the present invention, first passes through online charging aperture 23 using pressurization rifle
Injection liquid packing, liquid packing are limited between sealing throat bushing 5 and sliding bearing 4, stirred in toward packing chamber 22
During device rotating shaft 1 rotates, liquid packing plays sealing function；Wherein, before agitator startup, interior flushing water hole 26 is passed through
Cut-in pressure is that 4-5kg water is squeezed into rinsing in space 25, so effectively can prevent slurries from leaking.
For the sealing throat bushing 5 of the present invention, it can not only play throttle effect, but also can be with sliding axle
4 are held to play a part of supporting rotating shaft of stirrer 1 to rotate.In the side stir device course of work, equipment operation for a period of time after,
If it find that sliding bearing 4 has water to ooze out from endoporus spiral, now need to pass through online charging aperture 23 using pressurization rifle online
Material feeding, and open steam vent 24 and be exhausted, oozed out until anhydrous in the endoporus spiral of sliding bearing 4 for this.
From the above situation, it can be seen that, there is advantages below by said structure design, the present invention, specifically：1st, liquid disk
Root is to the required precision of annular seal space and axle without harshness；2nd, do not shut down and online charging can be achieved, reach zero leakage and reach section
Can consumption reduction and environmentally friendly requirement；3rd, when mechanical seal is broken down, when can not change online, secondary seal can be achieved.
Above content is only presently preferred embodiments of the present invention, for one of ordinary skill in the art, according to the present invention's
Thought, there will be changes, this specification content should not be construed as to the present invention in specific embodiments and applications
Limitation.
Claims (3)
- A kind of 1. secondary liquid packing sealing structure applied to absorption tower side stir device, it is characterised in that：Include and be in The rotating shaft of stirrer of horizontal cross arrangement（1）, rotating shaft of stirrer（1）It is fitted with packing_seal cavity（2）, positioned at packing_seal chamber Body（2）The stationary gland of front（3）, stationary gland（3）Packing_seal cavity is anchored on by lock screw（2）Front end Face, packing_seal cavity（2）Inside offer it is front and rear completely through cavity through hole（21）, stationary gland（3）Inside open Provided with it is front and rear completely through gland through hole（31）, rotating shaft of stirrer（1）Sequentially pass through gland through hole（31）, cavity through hole （21）；Stationary gland（3）Gland through hole（31）Interior inlay card is set in rotating shaft of stirrer（1）The sliding bearing of periphery（4）, it is sliding Dynamic bearing（4）Offer radially completely through and and sliding bearing（4）Centre bore connection bearing oiling hole（41）, fixed pressure Lid（3）Offer and bearing oiling hole（41）The gland tank filler sleeve of connection（32）；Cavity through hole（21）Middle part be screwed with and be set in rotating shaft of stirrer（1）The sealing throat bushing of periphery（5）, cavity through hole （21）In sliding bearing（4）With sealing throat bushing（5）Between space be packing chamber（22）, packing_seal cavity（2）It is upper Surface offers and packing chamber（22）The online charging aperture of connection（23）, packing_seal cavity（2）Lower surface offer with Packing chamber（22）The steam vent of connection（24）；Cavity through hole（21）In sealing throat bushing（5）The space of rear end is flushing space（25）, packing_seal cavity（2）Appearance Face is offered with rinsing space（25）The interior flushing water hole of connection（26）.
- 2. a kind of secondary liquid packing sealing structure applied to absorption tower side stir device according to claim 1, It is characterized in that：The sliding bearing（4）Pass through holding screw（6）It is anchored on stationary gland（3）Gland through hole（31）It is interior.
- 3. a kind of secondary liquid packing sealing structure applied to absorption tower side stir device according to claim 1, It is characterized in that：The packing_seal cavity（2）Rear end face offer around ring in the cavity through hole（21）Outside open rearward end The support slot enclosed, support slot is interior to be embedded with fluororubber O-type ring（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710990573.7A CN107631029A (en) | 2017-10-23 | 2017-10-23 | A kind of secondary liquid packing sealing structure applied to absorption tower side stir device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710990573.7A CN107631029A (en) | 2017-10-23 | 2017-10-23 | A kind of secondary liquid packing sealing structure applied to absorption tower side stir device |
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| Publication Number | Publication Date |
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| CN107631029A true CN107631029A (en) | 2018-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710990573.7A Pending CN107631029A (en) | 2017-10-23 | 2017-10-23 | A kind of secondary liquid packing sealing structure applied to absorption tower side stir device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019178998A1 (en) * | 2018-03-23 | 2019-09-26 | 深圳市创世纪机械有限公司 | Spindle airtight sealing apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214345A (en) * | 2014-06-20 | 2014-12-17 | 辽阳泵业密封有限公司 | Multi-level sealing device |
| CN204573103U (en) * | 2015-01-12 | 2015-08-19 | 大连华阳密封股份有限公司 | Be applicable to the mechanical seal of means of flue gas desulfurization of power plant absorption tower sidepiece stirrer |
| CN205401721U (en) * | 2016-03-11 | 2016-07-27 | 广州凯里莱电气机械有限公司 | Electronic flapper liquid packing seal structure |
-
2017
- 2017-10-23 CN CN201710990573.7A patent/CN107631029A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214345A (en) * | 2014-06-20 | 2014-12-17 | 辽阳泵业密封有限公司 | Multi-level sealing device |
| CN204573103U (en) * | 2015-01-12 | 2015-08-19 | 大连华阳密封股份有限公司 | Be applicable to the mechanical seal of means of flue gas desulfurization of power plant absorption tower sidepiece stirrer |
| CN205401721U (en) * | 2016-03-11 | 2016-07-27 | 广州凯里莱电气机械有限公司 | Electronic flapper liquid packing seal structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019178998A1 (en) * | 2018-03-23 | 2019-09-26 | 深圳市创世纪机械有限公司 | Spindle airtight sealing apparatus |
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