CN107701730A - A kind of mechanically-sealing apparatus for being used to seal the strong volatility toxic liquid of deep-etching - Google Patents
A kind of mechanically-sealing apparatus for being used to seal the strong volatility toxic liquid of deep-etching Download PDFInfo
- Publication number
- CN107701730A CN107701730A CN201710967890.7A CN201710967890A CN107701730A CN 107701730 A CN107701730 A CN 107701730A CN 201710967890 A CN201710967890 A CN 201710967890A CN 107701730 A CN107701730 A CN 107701730A
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- Prior art keywords
- seal
- auxiliary
- support
- sealing
- deep
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/162—Special parts or details relating to lubrication or cooling of the sealing itself
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
- Sealing Devices (AREA)
Abstract
Be used to seal the mechanically-sealing apparatus of the strong volatility toxic liquid of deep-etching, including the support being connected on fixing body the invention discloses a kind of, and be arranged on air side and the mechanical seal box assembly that is connected on support；Also include auxiliary seal case that is being arranged on sealing side and being connected on support；Drainage structure is formed between auxiliary seal case and support, auxiliary sealing structure is provided between rotary shaft；Auxiliary seal external tapping that is through fixing body and being connected with auxiliary sealing structure is additionally provided with support；Drainage structure and auxiliary sealing structure form primary seal, mechanical seal box assembly forms the secondary seal coordinated with primary seal, when double mechanical seal damage needs to change, pressure nitrogen, auxiliary seal plunger forces rubber seal are passed through by auxiliary seal external tapping, rubber seal is held tightly on the rotary shaft, so that sealed end is isolated with atmosphere end, multiple-sealed combination, sealing property is more preferable, and security reliability is higher.
Description
Technical field
The present invention relates to sealing device technical field, in particular to a kind of good seal performance, security reliability height
Be used for seal the mechanically-sealing apparatus of the strong volatility toxic liquid of deep-etching.
Background technology
Mechanical seal is mainly used in the dynamic sealing of the machine and equipment motion parts in machinery industry, such as centrifugal pump, pressure
Contracting machine, vavuum pump, mixer, the rotating shaft sealing of reactor, reciprocating pump, the plunger or piston rod of reciprocating compressor, and do
Sealing between straight line, the valve rod of screw valve and fixed body；When for sealing deep-etching, strong volatility, having venom
During the operating mode of body, traditional mechanical seal structure, by the way of the external insulating liquid of double mechanical seal, existed by insulating liquid
Machine, which is sealed in joint sealing, forms isolation barrier, prevents interior media from leaking, if the pressure of insulating liquid is inadequate, when less than interior media
During pressure, interior media will enter machine and be sealed in joint sealing, not only reduce end seal sealing service life it is short, and
And the medium of leakage can have potential safety hazard by external isolation liquid pipe outflow.
The content of the invention
It is an object of the present invention to provide a kind of good seal performance, security reliability is high is used to seal the strong volatility of deep-etching
The mechanically-sealing apparatus of toxic liquid, solves above technical problem.
In order to realize above-mentioned technical purpose, reach above-mentioned technical requirements, the technical solution adopted in the present invention is：It is a kind of
For sealing the mechanically-sealing apparatus of the strong volatility toxic liquid of deep-etching, including the support being connected on fixing body, Yi Jishe
Put mechanical seal box assembly that is in air side and being connected on support；It is characterized in that：Also include being arranged on sealing side
And the auxiliary seal case that is connected on support；Drainage structure is formed between described auxiliary seal case and support, with rotary shaft
Between be provided with auxiliary sealing structure；It is additionally provided with through fixing body on described support and is connected with auxiliary sealing structure
Auxiliary seal external tapping.
As preferable technical scheme：Described mechanical seal box assembly includes the seal box being bolted on support,
Be connected to axle sleeve and double mechanical seal between seal box and rotary shaft, and be connected on seal box and double mechanical
The insulating liquid import of the connection of sealing and insulating liquid outlet.
As preferable technical scheme：Thread segment is additionally provided with rotating ring on described double mechanical seal is cylindrical.
As preferable technical scheme：Described drainage structure includes the liquid collecting being arranged between support and auxiliary seal case
Chamber, and the discharging tube connected with liquid collecting cavity being arranged on support.
As preferable technical scheme：Described auxiliary sealing structure includes rubber seal, coordinates with rubber seal
Auxiliary seal piston, the first sealing structure being connected between auxiliary seal piston and auxiliary seal case, be arranged on auxiliary it is close
Gland between joint sealing and auxiliary seal piston, and be arranged on second between gland and auxiliary seal case and auxiliary seal piston
Sealing structure.
As preferable technical scheme：Formed and aided between described gland and auxiliary seal case and auxiliary seal piston
Seal the cavity of external tapping connection.
As preferable technical scheme：It is additionally provided with described auxiliary seal piston and matches somebody with somebody with the inclined-plane in rubber seal
The oblique angle of conjunction.
The beneficial effects of the invention are as follows：A kind of mechanically-sealing apparatus for being used to seal the strong volatility toxic liquid of deep-etching,
Compared with traditional structure：It is provided with mechanical seal box assembly, drainage structure and auxiliary sealing structure phase structure；During actual use,
Described drainage structure and auxiliary sealing structure form primary seal, when long-time use, when having interior media leakage, due to setting
It is equipped with drainage structure so that interior media is discharged in pre-prepd container, and described mechanical seal box assembly is formed and one-level
The secondary seal coordinated is sealed, is combined by double mechanical seal and insulating liquid, and it is dynamic on double mechanical seal
Thread segment is additionally provided with ring is cylindrical, thread segment rotates with rotating ring, and the motive force of formation promotes insulating liquid to carry out circulation flushing
With the sealing surface of cooling double mechanical seal；It is external by auxiliary seal when double mechanical seal damage needs to change
Mouth has been passed through pressure nitrogen so that auxiliary seal plunger forces rubber seal, rubber seal are held tightly on the rotary shaft so that close
End-blocking is isolated with atmosphere end；Multiple-sealed combination, sealing property is more preferable, and security reliability is higher.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
In figure：1. fixing body, 2. supports, 3. mechanical seal box assemblies, 4. auxiliary seal casees, 5. drainage structures, 6. auxiliary are close
Seal structure, 7. auxiliary seal external tappings, 101. atmosphere ends, 102. sealed ends, 103. rotary shafts, 3-1. seal boxs, 3-2. axle sleeves,
3-3. double mechanical seals, the import of 3-4. insulating liquids, the outlet of 3-5. insulating liquids, 3-6. thread segments, 5-1. liquid collecting cavities, 5-2. row
Liquid pipe, 6-1. rubber seal, 6-2. auxiliary seals piston, the sealing structures of 6-3. first, 6-4. glands, the sealing knots of 6-5. second
Structure, 6-6. cavitys, 6-7. oblique angles.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings；
In the accompanying drawings：A kind of mechanically-sealing apparatus for being used to seal the strong volatility toxic liquid of deep-etching, including connected by bolt
The support 2 being connected on fixing body 1, and be arranged on the side of atmosphere end 101 and the mechanical seal box assembly that is connected on support 2
3；Also include auxiliary seal case 4 that is being arranged on the side of sealed end 102 and being connected on support 2；Described auxiliary seal case 4 with
Formed between support 2 between drainage structure 5, with rotary shaft 103 and be provided with auxiliary sealing structure 6；Also set up on described support 2
There is auxiliary seal external tapping 7 that is through fixing body 1 and being connected with auxiliary sealing structure 6；During actual use, described discharge opeing
Structure 5 and auxiliary sealing structure 6 form primary seal, when long-time use, when having interior media leakage, due to being provided with discharge opeing
Structure 5 so that interior media is discharged in pre-prepd container,
Described mechanical seal box assembly forms the secondary seal coordinated with primary seal, by traditional mechanical seal structure,
Multi-stage protection is formed, when mechanical seal damage needs to change, pressure nitrogen has been passed through by auxiliary seal external tapping 7 so that auxiliary
Help sealing piston 6-2 oppress rubber seal 6-1, rubber seal 6-1 hold tightly in rotary shaft 103 so that sealed end 102 with
Atmosphere end 101 is isolated；Multiple-sealed combination, sealing property is more preferable, and security reliability is higher.
In Fig. 1：Described mechanical seal box assembly 3 includes the seal box 3-1 being bolted on support 2, is connected to
Axle sleeve 3-2 and double mechanical seal 3-3 between seal box 3-1 and rotary shaft 103, and be connected on seal box 3-1 with
Insulating liquid import 3-4 and insulating liquid the outlet 3-5 of double mechanical seal 3-3 connection；Described double mechanical seal 3-3
On rotating ring it is cylindrical on be additionally provided with thread segment 3-6；The motive force that double mechanical seal 3-3 combination thread segments 3-6 is formed, is pushed away
Powered insulating liquid carries out circulation flushing and cools down double mechanical seal 3-3 sealing surface, not only extends Double End machine
Tool seals 3-3 service life, and sealing property is more preferable.
In Fig. 1：Described drainage structure 5 includes the liquid collecting cavity 5-1 being arranged between support 2 and auxiliary seal case 4, with
And it is arranged on the discharging tube 5-2 connected with liquid collecting cavity 5-1 on support 2；When interior media is leaked by auxiliary sealing structure 6
When, medium enters liquid collecting cavity 5-1, due to the effect of pressure so that medium is discharged by discharging tube 5-2, and medium will not enter machinery
Box assembly 3 is sealed, improves sealing property, and protect mechanical seal box assembly 3.
In Fig. 1：Described auxiliary sealing structure 6 includes rubber seal 6-1, coordinates with rubber seal 6-1 auxiliary
Sealing piston 6-2 is helped, the first sealing structure 6-3 being connected between auxiliary seal piston 6-2 and auxiliary seal case 4, is arranged on
Gland 6-4 between auxiliary seal case 4 and auxiliary seal piston 6-2, and it is arranged on gland 6-4 and auxiliary seal case 4 and auxiliary
Help second seals structure 6-5 between sealing piston 6-2；Described gland 6-4 and auxiliary seal case 4 and auxiliary seal piston 6-2
Between form the cavity 6-6 that is connected with auxiliary seal external tapping 7；It is additionally provided with described auxiliary seal piston 6-2 and rubber
The oblique angle 6-7 that inclined-plane on sealing ring 6-1 coordinates；During actual use, double mechanical seal 3-3 uses for a long time need to change
When, pressure nitrogen has been passed through by auxiliary seal external tapping 7, moved into cavity 6-6, auxiliary seal piston 6-2, auxiliary seal is lived
The inclined-plane on the oblique angle 6-7 compressing rubber seal 6-1 on 6-2 is filled in, rubber seal 6-1 is held tightly in rotary shaft 103 by compression
On so that sealed end 102 is isolated with atmosphere end 101, it is therefore prevented that and interior media leaks, and is conveniently replaceable double mechanical seal 3-3,
Security reliability is high.
Above-described embodiment is only intended to clearly illustrate the description that the present invention is made, and is not the restriction to embodiment,
To those of ordinary skill in the art, other various forms of changes or change can also be made on the basis of the above description
Dynamic, there is no necessity and possibility to exhaust all the enbodiments, and the obvious change or change thus amplified out
Among moving still in protection scope of the present invention.
Claims (7)
1. a kind of mechanically-sealing apparatus for being used to seal the strong volatility toxic liquid of deep-etching, including it is connected to fixing body（1）On
Support（2）, and it is arranged on atmosphere end（101）Side and be connected to support（2）On mechanical seal box assembly（3）；It is special
Sign is：Also include being arranged on sealed end（102）Side and be connected to support（2）On auxiliary seal case（4）；Described auxiliary
Seal box（4）With support（2）Between form drainage structure（5）, with rotary shaft（103）Between be provided with auxiliary sealing structure（6）；
Described support（2）On be additionally provided with through fixing body（1）And and auxiliary sealing structure（6）The auxiliary seal of connection is external
Mouthful（7）.
2. a kind of mechanically-sealing apparatus for being used to seal the strong volatility toxic liquid of deep-etching according to claim 1, its
It is characterized in：Described mechanical seal box assembly（3）Including being bolted to support（2）On seal box（3-1）, it is connected to sealing
Case（3-1）And rotary shaft（103）Between axle sleeve（3-2）And double mechanical seal（3-3）, and it is connected to seal box（3-1）
On and double mechanical seal（3-3）Connection insulating liquid import（3-4）Exported with insulating liquid（3-5）.
3. a kind of mechanically-sealing apparatus for being used to seal the strong volatility toxic liquid of deep-etching according to claim 2, its
It is characterized in：Described double mechanical seal（3-3）On rotating ring it is cylindrical on be additionally provided with thread segment（3-6）.
4. a kind of mechanically-sealing apparatus for being used to seal the strong volatility toxic liquid of deep-etching according to claim 1, its
It is characterized in：Described drainage structure（5）Including being arranged on support（2）With auxiliary seal case（4）Between liquid collecting cavity（5-1）, with
And it is arranged on support（2）On and liquid collecting cavity（5-1）The discharging tube of connection（5-2）.
5. a kind of mechanically-sealing apparatus for being used to seal the strong volatility toxic liquid of deep-etching according to claim 1, its
It is characterized in：Described auxiliary sealing structure（6）Including rubber seal（6-1）, with rubber seal（6-1）The auxiliary of cooperation is close
Seal piston（6-2）, it is connected to auxiliary seal piston（6-2）With auxiliary seal case（4）Between the first sealing structure（6-3）If
Put in auxiliary seal case（4）With auxiliary seal piston（6-2）Between gland（6-4）, and it is arranged on gland（6-4）With auxiliary
Seal box（4）With auxiliary seal piston（6-2）Between second seals structure（6-5）.
6. a kind of mechanically-sealing apparatus for being used to seal the strong volatility toxic liquid of deep-etching according to claim 5, its
It is characterized in：Described gland（6-4）With auxiliary seal case（4）With auxiliary seal piston（6-2）Between formed with auxiliary seal outside
Interface（7）The cavity of connection（6-6）.
7. a kind of mechanically-sealing apparatus for being used to seal the strong volatility toxic liquid of deep-etching according to claim 5, its
It is characterized in：Described auxiliary seal piston（6-2）On be additionally provided with and rubber seal（6-1）On inclined-plane coordinate oblique angle
（6-7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710967890.7A CN107701730B (en) | 2017-10-18 | 2017-10-18 | Mechanical sealing device for sealing strong-corrosion and strong-volatility toxic liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710967890.7A CN107701730B (en) | 2017-10-18 | 2017-10-18 | Mechanical sealing device for sealing strong-corrosion and strong-volatility toxic liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107701730A true CN107701730A (en) | 2018-02-16 |
| CN107701730B CN107701730B (en) | 2023-06-23 |
Family
ID=61181273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710967890.7A Active CN107701730B (en) | 2017-10-18 | 2017-10-18 | Mechanical sealing device for sealing strong-corrosion and strong-volatility toxic liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107701730B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359595A (en) * | 2011-09-19 | 2012-02-22 | 宁波东联密封件有限公司 | Mechanical seal for agitated reactor stirring shaft |
| CN202468438U (en) * | 2012-02-26 | 2012-10-03 | 大连罗兰泵业有限公司 | Combined sealing device for submerged pump |
| CN203627294U (en) * | 2013-12-20 | 2014-06-04 | 奥赛罗密封科技（上海）有限公司 | Double-end-face mechanical sealing structure for slurry pump |
| WO2017156933A1 (en) * | 2016-03-16 | 2017-09-21 | 邢宇 | High pressure resistant flushing system with multiple mechanical seals |
| CN107202031A (en) * | 2016-03-16 | 2017-09-26 | 温刚 | The independent isolating rinse-system of double end surface mechanical seal for centrifugal pumps |
| CN207364277U (en) * | 2017-10-18 | 2018-05-15 | 江苏飞跃机泵集团有限公司 | For sealing the mechanically-sealing apparatus of the strong volatility toxic liquid of deep-etching |
-
2017
- 2017-10-18 CN CN201710967890.7A patent/CN107701730B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359595A (en) * | 2011-09-19 | 2012-02-22 | 宁波东联密封件有限公司 | Mechanical seal for agitated reactor stirring shaft |
| CN202468438U (en) * | 2012-02-26 | 2012-10-03 | 大连罗兰泵业有限公司 | Combined sealing device for submerged pump |
| CN203627294U (en) * | 2013-12-20 | 2014-06-04 | 奥赛罗密封科技（上海）有限公司 | Double-end-face mechanical sealing structure for slurry pump |
| WO2017156933A1 (en) * | 2016-03-16 | 2017-09-21 | 邢宇 | High pressure resistant flushing system with multiple mechanical seals |
| CN107202031A (en) * | 2016-03-16 | 2017-09-26 | 温刚 | The independent isolating rinse-system of double end surface mechanical seal for centrifugal pumps |
| CN207364277U (en) * | 2017-10-18 | 2018-05-15 | 江苏飞跃机泵集团有限公司 | For sealing the mechanically-sealing apparatus of the strong volatility toxic liquid of deep-etching |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107701730B (en) | 2023-06-23 |
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