CN106762652A - Roots blower combined sealing structure - Google Patents
Roots blower combined sealing structure Download PDFInfo
- Publication number
- CN106762652A CN106762652A CN201611138368.XA CN201611138368A CN106762652A CN 106762652 A CN106762652 A CN 106762652A CN 201611138368 A CN201611138368 A CN 201611138368A CN 106762652 A CN106762652 A CN 106762652A
- Authority
- CN
- China
- Prior art keywords
- seal
- seal receptacle
- buckle
- side cover
- sealing ring
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 38
- 239000002828 fuel tank Substances 0.000 claims abstract description 6
- 210000004907 gland Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/005—Axial sealings for working fluid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a kind of roots blower combined sealing structure, it is characterized in that it includes side cover（1）, main shaft（2）And seal receptacle（3）, the seal receptacle（3）Installed in main shaft（2）On, seal receptacle（3）Installed in side cover（1）In, seal receptacle（3）Buckle-type sealing ring is installed in the inner part（4）, the buckle-type sealing ring（4）With side cover（1）Contact site be face contact, the seal receptacle（3）On be additionally provided with fuel tank side（5）Polytetrafluoro seal（6）, polytetrafluoro seal（6）With side cover（1）Contact site also be face contact.Close ring type filling due to using full buckle-type of the invention, is the sealing of end face face, can effectively reduce the leakage quantity that leaks, polytetrafluoro seal is resistant to 250 DEG C of high temperature, and its linear velocity can reach 50M/S, after two seal combinations, make not leaked with fan body side for blower fan, the advantage of long service life.
Description
Technical field
The present invention relates to a kind of sealing structure of roots blower.
Background technology
Sealing gland is widely used in the side cover inner side air seal of roots blower, and common blower fan sealing gland is sealed using Mi Gong, when
Using when at a high speed with high pressure roots blower, because its fan body side is large-minded, pressure is high, and temperature is high, causes blower fan
External leakage is increased, and influences fan delivery, and higher by external leakage gas temperature, rotation speed of fan is high, further results at blower fan fuel tank
The conventional oil sealing life-span substantially reduces.
The content of the invention
The deficiency that the purpose of the present invention exists aiming at above-mentioned prior art, there is provided outside a kind of long service life, gas
The few roots blower sealing structure of leakage rate.
The technical solution adopted by the present invention is as follows：
A kind of roots blower combined sealing structure, it is characterized in that it includes side cover, main shaft and seal receptacle, the seal receptacle is installed
On main shaft, seal receptacle is arranged in side cover, and seal receptacle is provided with buckle-type sealing ring, the buckle-type sealing ring in the inner part
With the contact site of side cover for face contacts, the polytetrafluoro seal in fuel tank side is additionally provided with the seal receptacle, polytetrafluoro is close
The contact site of sealing and side cover is also for face contacts.
The buckle-type sealing ring is arranged in the groove on seal receptacle.
Have buckle-type sealing ring thickness 1/3-2/3's in vain to the bottom portion of groove in the inner ring face of the buckle-type sealing ring
Distance.
Beneficial effects of the present invention have：
It is the sealing of end face face due to using the close ring type filling of full buckle-type, can effectively reduces the leakage quantity that leaks, polytetrafluoro sealing
Part is resistant to 250 DEG C of high temperature, and its linear velocity can reach 50M/S, after two seal combinations, makes not let out with fan body side for blower fan
Leakage, the advantage of long service life.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings：
As shown in figure 1, the present invention it include side cover 1, main shaft 2 and seal receptacle 3, the seal receptacle 3 is arranged on main shaft 2, close
Envelope seat 3 is arranged in side cover 1, and seal receptacle 3 is provided with buckle-type sealing ring 4, the buckle-type sealing ring 4 and side cover in the inner part
1 contact site is contacted for face, and the polytetrafluoro seal 6 in fuel tank side 5, polytetrafluoro sealing are additionally provided with the seal receptacle 3
The contact site of part 6 and side cover 1 is also for face contacts.Lubricating oil is housed in fuel tank side 5.
The present invention is taken in groove of the preferred buckle-type sealing ring 4 on the seal receptacle 3, and buckle-type sealing ring 4 is interior
The distance of the thickness 1/3-2/3 of buckle-type sealing ring 4 is had in circle face in vain to the bottom portion of groove, is so having a small amount of gas from blower fan
Buckle-type sealing ring 4 is oppressed after the leakage of this side, makes buckle-type sealing ring 4 tightr with the contact of side cover 1, it is ensured that will not leak
Gas.
After buckle-type sealing ring 4 is loaded seal receptacle 3 by the present invention, seal receptacle 3 is loaded into main shaft 2, it is then that polytetrafluoro is close
Sealing 6 loads side cover 1, then side cover 1 is attached on seal receptacle 3 together with polytetrafluoro seal 6 using device.
Other undeclared parts of the present invention are same as the prior art.
Claims (3)
1. a kind of roots blower combined sealing structure, it is characterized in that it includes side cover（1）, main shaft（2）And seal receptacle（3）, institute
State seal receptacle（3）Installed in main shaft（2）On, seal receptacle（3）Installed in side cover（1）In, seal receptacle（3）Be provided with take in the inner part
Button-type sealing ring（4）, the buckle-type sealing ring（4）With side cover（1）Contact site be face contact, the seal receptacle（3）On
It is additionally provided with fuel tank side（5）Polytetrafluoro seal（6）, polytetrafluoro seal（6）With side cover（1）Contact site also be face
Contact.
2. roots blower combined sealing structure according to claim 1, it is characterized in that the buckle-type sealing ring（4）Install
In seal receptacle（3）On groove in.
3. roots blower combined sealing structure according to claim 2, it is characterized in that the buckle-type sealing ring（4）It is interior
Buckle-type sealing ring is had in vain to the bottom portion of groove in circle face（4）The distance of thickness 1/3-2/3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138368.XA CN106762652A (en) | 2016-12-12 | 2016-12-12 | Roots blower combined sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138368.XA CN106762652A (en) | 2016-12-12 | 2016-12-12 | Roots blower combined sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106762652A true CN106762652A (en) | 2017-05-31 |
Family
ID=58875502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611138368.XA Pending CN106762652A (en) | 2016-12-12 | 2016-12-12 | Roots blower combined sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106762652A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201412341Y (en) * | 2009-06-19 | 2010-02-24 | 西安志高罗茨风机技术有限责任公司 | Main shaft sealing and isolating structure of Roots blower |
| CN201827079U (en) * | 2010-10-28 | 2011-05-11 | 浙江江山化工股份有限公司 | Seal structure of rotary shaft of roots blower |
| CN203258063U (en) * | 2013-05-08 | 2013-10-30 | 江西省萍乡市三善机电有限公司 | Novel hasp type sealing ring |
| CN203374482U (en) * | 2013-06-22 | 2014-01-01 | 四川省鼓风机制造有限责任公司 | Framework sealing assembly |
| CN104676009A (en) * | 2015-02-06 | 2015-06-03 | 洛阳普瑞曼自动控制技术有限公司 | Teflon framework oil seal with automatic compensation function |
| CN205503296U (en) * | 2016-04-01 | 2016-08-24 | 奉化市鼎联汽车空压机厂 | Split typely prevent oil leakage piston structure |
| CN206368815U (en) * | 2016-12-12 | 2017-08-01 | 无锡吴创环境科技有限公司 | Roots blower combined sealing structure |
-
2016
- 2016-12-12 CN CN201611138368.XA patent/CN106762652A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201412341Y (en) * | 2009-06-19 | 2010-02-24 | 西安志高罗茨风机技术有限责任公司 | Main shaft sealing and isolating structure of Roots blower |
| CN201827079U (en) * | 2010-10-28 | 2011-05-11 | 浙江江山化工股份有限公司 | Seal structure of rotary shaft of roots blower |
| CN203258063U (en) * | 2013-05-08 | 2013-10-30 | 江西省萍乡市三善机电有限公司 | Novel hasp type sealing ring |
| CN203374482U (en) * | 2013-06-22 | 2014-01-01 | 四川省鼓风机制造有限责任公司 | Framework sealing assembly |
| CN104676009A (en) * | 2015-02-06 | 2015-06-03 | 洛阳普瑞曼自动控制技术有限公司 | Teflon framework oil seal with automatic compensation function |
| CN205503296U (en) * | 2016-04-01 | 2016-08-24 | 奉化市鼎联汽车空压机厂 | Split typely prevent oil leakage piston structure |
| CN206368815U (en) * | 2016-12-12 | 2017-08-01 | 无锡吴创环境科技有限公司 | Roots blower combined sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
|
| RJ01 | Rejection of invention patent application after publication |