CN102338223B - Novel fluid sealing device provided with diaphragm dynamic differential pressure balancer - Google Patents
Novel fluid sealing device provided with diaphragm dynamic differential pressure balancer Download PDFInfo
- Publication number
- CN102338223B CN102338223B CN201010238414.XA CN201010238414A CN102338223B CN 102338223 B CN102338223 B CN 102338223B CN 201010238414 A CN201010238414 A CN 201010238414A CN 102338223 B CN102338223 B CN 102338223B
- Authority
- CN
- China
- Prior art keywords
- pressure
- back flow
- passage
- separate space
- barrier film
- 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.)
- Active
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 title abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 230000004888 barrier function Effects 0.000 claims description 39
- 230000005540 biological transmission Effects 0.000 claims description 32
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 230000033228 biological regulation Effects 0.000 claims description 14
- 230000009467 reduction Effects 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 12
- 239000011261 inert gas Substances 0.000 claims description 12
- 239000000314 lubricant Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000010687 lubricating oil Substances 0.000 abstract 1
- 230000001737 promoting effect Effects 0.000 abstract 1
- 230000008859 change Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The invention provides a novel fluid sealing device provided with a diaphragm dynamic differential pressure balancer. The novel fluid sealing device can ensure that a conveyed liquid medium absolutely cannot be leaked and then cannot be mixed with lubricating oil or other media, a sealed part is in air seal in a gap or light pressure state and the friction force of the sealed part is small; moreover, the novel fluid sealing device can realize automatic control of dynamic pressure differential pressure balancing. The novel fluid sealing device has the advantages that: the differential pressures at two ends of a sealing member are always in balance; the novel fluid sealing device is particularly applicable to most advanced special technical fields of high-risk media, ultra-high differential pressure and the like; and once the novel fluid sealing device is used, the influence power is as good as an effect of promoting equipment dynamic sealing after the emergence of mechanical seal.
Description
Technical field
The present invention relates to Fluid Sealing class technical field, is a kind of novel fluid seal device with barrier film dynamic differential pressure balace weight.
Background technique
Existing all kinds of fluid seal structure device, in order to accomplish effective sealing, can only artificially increase sealing load, thereby accelerates sealing part abrasion, shortening seal durability.After using a period of time, all can then gradually produce leakage, the Sealing of just having to change to a certain extent because of wearing and tearing.Even if use emerging mechanical seal device in modern age, allow traditional axial plane sealing be converted to compensable end face seal, but the Maximum differential pressure that it can bear is also limited.Particularly in some specific environments, not in time or cannot change in time Sealing, trickle leakage mixes and even can cause accident to occur.Application number 2008101779436 patent of invention " novel fluid seal structure " have solved from principle needn't be because of the leakage of a little Sealing of just having to change, guarantee security of operation, also stopped the human catastrophe consequence that specific environment may cause because of trickle leakage mixing, but also lack dynamic differential pressure balance auto-control match equipment, therefore can't directly apply to actual operation.In order to ensure the lubricant oil that is transferred high-pressure liquid medium and back flow side, both all the time in effective sealing, to the axle surface of sealing place, do not have excessive pressure wearing and tearing again, potted line should gently contact preferably and not contact.This just must make the pressure reduction at sealing place two ends be controlled in small pressure difference allowed band, preferably zero pressure difference.
Summary of the invention
The invention provides a kind of novel fluid seal device with barrier film dynamic differential pressure balace weight, improvement match equipment as application number 200810177943.6 patent of invention " novel fluid seal structure ", a kind ofly can guarantee to be transferred liquid medium and can never leak into lubricant oil or other media and mix, make to seal position in gap or the gas seal of light pressure state, and sealing position frictional force is minimum, can also accomplish to possess the novel fluid seal device of dynamic differential pressure balance auto-control.
The present invention adopts following technological scheme:
A kind of novel fluid seal device with barrier film dynamic differential pressure balace weight, by rotating or reciprocating transmission shaft, water-tight equipment isolating main bodies, a pair of spring bearing or bearing shell in lubricant oil, transmission space, back flow side separate space, to being transferred the work actuator of liquid medium acting, working space, active side separate space forms, it is characterized in that: between described working space and described active side separate space, set up work side cover side chamber passage, work side cover lateral retaining plate through hole, active side balance barrier film, work side shaft lateral retaining plate through hole, active side regulating rod, high-pressure inert gas dynamic regulation passage, work side lever side chamber passage, the active side barrier film dynamic differential pressure balace weight that the inlet passage of introduction high-pressure inert gas forms, between described transmission space and described back flow side separate space, set up transmission side lever side chamber passage, controlled the back flow side barrier film dynamic differential pressure balace weight that dynamic regulation passage, back flow side regulating rod, the outlet passage that leads to normal pressure atmosphere or negative pressure of vacuum, transmission side lever lateral retaining plate through hole, back flow side balance barrier film, transmission side cover lateral retaining plate through hole, the transmission side cover side chamber passage of back flow side separate space gas pressure form, in addition, gapped resistance pressure reduction passage between described back flow side separate space and described active side separate space, had both played decompression, more guaranteed the safety isolation of high-risk medium and lubricant oil.
The novel fluid seal device with barrier film dynamic differential pressure balace weight after improvement, because being adopts membrane configuration as the felt piece of dynamic differential pressure balance auto-control, the sealing of self has also thoroughly eliminated, and directly utilizes operating pressure differential auto-control.Advantage of the present invention is the pressure reduction balance all the time of having accomplished Sealing two ends, and the most advanced and sophisticated special technique fields such as the high-risk medium of particularly suitable and superhigh pressure difference, once after application, its influence power is by the effect to lifting means motive sealing after emerging not second to mechanical seal.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is done to progressive explanation, in accompanying drawing, all static seals place all represents with entity.
Accompanying drawing is a kind of embodiment's of the present invention structural representation.
Embodiment
In the accompanying drawings: the 1st, transmission shaft, rotates or to-and-fro motion 2 is water-tight equipment isolating main bodies; The 3rd, lubricant oil and extraneous Sealing; The 4th, a pair of spring bearing or bearing shell in lubricant oil; The 5th, transmission space, the 6th, back flow side Sealing, between transmission space and back flow side separate space; The 7th, back flow side separate space; The 8th, work side cover side chamber passage, is communicated with active side separate space 20 and work side cover lateral retaining plate through hole 9; The 9th, work side cover lateral retaining plate through hole; The 10th, active side balance barrier film; The 11st, work side shaft lateral retaining plate through hole; The 12nd, active side regulating rod; The 13rd, high-pressure inert gas dynamic regulation passage; The 14th, work side lever side chamber passage, is communicated with working space 17 and work side shaft lateral retaining plate through hole 11; The 15th, the inlet passage of introduction high-pressure inert gas; The 16th, work actuator, to being transferred liquid medium acting, as the impeller of pump head etc.; The 17th, working space; The 18th, active side Sealing, between working space 17 and active side separate space 20; The 19th, gap resistance pressure reduction passage, between back flow side separate space 7 and active side separate space 20; The 20th, active side separate space; The 21st, transmission side lever side chamber passage, is communicated with back flow side separate space 7 and transmission side lever lateral retaining plate through hole 25; The 22nd, the dynamic regulation passage of control back flow side separate space gas pressure; The 23rd, back flow side regulating rod; The 24th, lead to the outlet passage of normal pressure atmosphere or negative pressure of vacuum; The 25th, transmission side lever lateral retaining plate through hole; The 26th, back flow side balance barrier film; The 27th, transmission side cover lateral retaining plate through hole; The 28th, transmission side cover side chamber passage, connection for transmission space 5 and transmission side cover lateral retaining plate through hole 27.
The inlet passage 15 of component serial number work side cover side chamber passage 8, work side cover lateral retaining plate through hole 9, active side balance barrier film 10, work side shaft lateral retaining plate through hole 11, active side regulating rod 12, high-pressure inert gas dynamic regulation passage 13, work side lever side chamber passage 14, introduction high-pressure inert gas has formed active side barrier film dynamic differential pressure balace weight.
Dynamic regulation passage 22, back flow side regulating rod 23, the outlet passage 24 that leads to normal pressure atmosphere or negative pressure of vacuum, transmission side lever lateral retaining plate through hole 25, back flow side balance barrier film 26, transmission side cover lateral retaining plate through hole 27, the transmission side cover side chamber passage 28 of component serial number transmission side lever side chamber passage 21, control back flow side separate space gas pressure have formed back flow side barrier film dynamic differential pressure balace weight.
The present invention also can omit back flow side barrier film dynamic differential pressure balace weight, independent auxiliary work side barrier film dynamic differential pressure balace weight, and allow back flow side separate space 7 directly conventionally press atmosphere.
While starting working, due between the gap resistance pressure reduction passage 19 between back flow side separate space and active side separate space and transmission shaft 1 in gap resistance pressure reduction passage, according to designing requirement, regulate in advance the regulating rod 12 of active side barrier film dynamic differential pressure balace weight and the regulating rod of back flow side barrier film dynamic differential pressure balace weight 23 to correct position, make the two ends pressure reduction of the Sealing 6 between transmission space 5 and back flow side separate space 7 and the two ends pressure reduction of the Sealing 18 between working space 17 and active side separate space 20 all be close to zero pressure reduction, the regulating rod 23 of the regulating rod 12 of active side barrier film dynamic differential pressure balace weight and back flow side barrier film dynamic differential pressure balace weight keeps static respectively and does not fluctuate under balance barrier film effect separately.So just can be by High Pressure Difference sealing conversion position low voltage difference or even without pressure reduction sealing, make equipment in light sealing load also without leakage.
When the pressure of working space 17 is during higher than active side separate space 20, make that the bar side of balance barrier film 10 of active side barrier film dynamic differential pressure balace weight is stressed is greater than that to cover side stressed and promote to move on the related regulating rod 12 of balance barrier film 10, make high-pressure inert gas dynamic regulation passage 13 increase, active side separate space 20 pressure raise immediately, reach new balance.
Otherwise, when the pressure of working space 17 is during lower than active side separate space 20, make the stressed bar side that is greater than of the lid side of balance barrier film 10 of active side barrier film dynamic differential pressure balace weight stressed and promote the related regulating rod 12 of balance barrier film 10 and move down, make high-pressure inert gas dynamic regulation passage 13 dwindle, active side separate space 20 pressure decline immediately, reach new balance.
In like manner, when transmission space 5 pressure are higher than back flow side separate space 7, make the stressed bar side that is greater than of the lid side of balance barrier film 26 of back flow side barrier film dynamic differential pressure balace weight stressed and promote the related regulating rod 23 of balance barrier film 26 and move down, make the dynamic regulation passage 22 of controlling back flow side separate space gas pressure dwindle, from the overflow inert gas of the gap resistance pressure reduction passage 19 between back flow side separate space 7 and active side separate space 20, more than flowing through, control the gas of the dynamic regulation passage 22 of back flow side separate space gas pressure, cause back flow side separate space 7 pressure to raise, reach new balance.。
Otherwise, when transmission space 5 pressure are lower than back flow side separate space 7, make the stressed bar side that is less than of the lid side of balance barrier film 26 of back flow side barrier film dynamic differential pressure balace weight stressed and promote to move on the related regulating rod 23 of balance barrier film 26, make the dynamic regulation passage 22 of controlling back flow side separate space gas pressure increase, from the overflow inert gas of the gap resistance pressure reduction passage 19 between back flow side separate space 7 and active side separate space 20, be less than the gas of the dynamic regulation passage 22 of the control back flow side separate space gas pressure of flowing through, cause back flow side separate space 7 pressure decreaseds, reach new balance.
So circulation, the insoluble superhigh pressure difference problem of script is converted to the pressure reduction among a small circle of being convenient to control, even, close to zero pressure difference, make the axle surface that seals position in the even stress-free gas seal of light pressure, fundamentally alleviate wearing and tearing even without wearing and tearing.The concept of gas-dynamic sealing is likened to just as the appearance of magnetic levitation vehicle visually by Professional visitors, also will have epoch-making meaning.
Claims (1)
1. the novel fluid seal device with barrier film dynamic differential pressure balace weight, by rotating or reciprocating transmission shaft (1), water-tight equipment isolating main bodies (2), a pair of spring bearing in lubricant oil or bearing shell (4), transmission space (5), back flow side separate space (7), to being transferred the work actuator (16) of liquid medium acting, working space (17), active side separate space (20) forms, it is characterized in that: between described working space (17) and described active side separate space (20), set up work side cover side chamber passage (8), work side cover lateral retaining plate through hole (9), active side balance barrier film (10), work side shaft lateral retaining plate through hole (11), active side regulating rod (12), high-pressure inert gas dynamic regulation passage (13), work side lever side chamber passage (14), the active side barrier film dynamic differential pressure balace weight that the inlet passage (15) of introduction high-pressure inert gas forms, between described transmission space (5) and described back flow side separate space (7), set up transmission side lever side chamber passage (21), control the dynamic regulation passage (22) of back flow side separate space gas pressure, back flow side regulating rod (23), the outlet passage (24) that leads to normal pressure atmosphere or negative pressure of vacuum, transmission side lever lateral retaining plate through hole (25), back flow side balance barrier film (26), transmission side cover lateral retaining plate through hole (27), the back flow side barrier film dynamic differential pressure balace weight that transmission side cover side chamber passage (28) forms, in addition gapped resistance pressure reduction passage (19) between described back flow side separate space (7) and described active side separate space (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010238414.XA CN102338223B (en) | 2010-07-20 | 2010-07-20 | Novel fluid sealing device provided with diaphragm dynamic differential pressure balancer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010238414.XA CN102338223B (en) | 2010-07-20 | 2010-07-20 | Novel fluid sealing device provided with diaphragm dynamic differential pressure balancer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102338223A CN102338223A (en) | 2012-02-01 |
| CN102338223B true CN102338223B (en) | 2014-12-03 |
Family
ID=45514108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010238414.XA Active CN102338223B (en) | 2010-07-20 | 2010-07-20 | Novel fluid sealing device provided with diaphragm dynamic differential pressure balancer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102338223B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117288622A (en) * | 2023-11-06 | 2023-12-26 | 浙江大学 | Friction and wear test device for high-pressure hydrogen environment material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU823656A1 (en) * | 1979-07-09 | 1981-04-23 | Государственный Научно-Исследова-Тельский И Проектный Институтнефтяной И Газовой Промыш-Ленности Им.B.И.Муравленко | Jet-type apparatus |
| EP1696299A2 (en) * | 2005-02-25 | 2006-08-30 | Marco Visconti | Pressure balancer |
| CN101709801A (en) * | 2009-11-19 | 2010-05-19 | 浙江沃尔达铜业有限公司 | Dynamic differential pressure balanced control valve |
| CN101737498A (en) * | 2008-11-19 | 2010-06-16 | 张意立 | Novel fluid seal structure |
| CN201779260U (en) * | 2010-07-20 | 2011-03-30 | 张意立 | Novel fluid sealing device with membrane dynamic differential pressure balancer |
-
2010
- 2010-07-20 CN CN201010238414.XA patent/CN102338223B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU823656A1 (en) * | 1979-07-09 | 1981-04-23 | Государственный Научно-Исследова-Тельский И Проектный Институтнефтяной И Газовой Промыш-Ленности Им.B.И.Муравленко | Jet-type apparatus |
| EP1696299A2 (en) * | 2005-02-25 | 2006-08-30 | Marco Visconti | Pressure balancer |
| CN101737498A (en) * | 2008-11-19 | 2010-06-16 | 张意立 | Novel fluid seal structure |
| CN101709801A (en) * | 2009-11-19 | 2010-05-19 | 浙江沃尔达铜业有限公司 | Dynamic differential pressure balanced control valve |
| CN201779260U (en) * | 2010-07-20 | 2011-03-30 | 张意立 | Novel fluid sealing device with membrane dynamic differential pressure balancer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102338223A (en) | 2012-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CH702385B8 (en) | Low-friction pressure compensation seal. | |
| CN102338223B (en) | Novel fluid sealing device provided with diaphragm dynamic differential pressure balancer | |
| CN205780885U (en) | From the Hydrodynamic-hydrostatic pressure combined liquid lubrication sealing device of drain | |
| CN201779260U (en) | Novel fluid sealing device with membrane dynamic differential pressure balancer | |
| CN102086936B (en) | Novel matching device with improved fluid sealing structure | |
| CN209622051U (en) | Hydraulic propeller mechanical sealing device used for pump | |
| CN208457207U (en) | A kind of integrated form both-end mechanical seal | |
| CN102411669B (en) | Prediction method of leakage rate of contact mechanical seal | |
| CN209354658U (en) | A kind of novel sealing component | |
| CN202867852U (en) | Novel mechanical seal capable of reducing end face deformation | |
| CN205330867U (en) | Shaft seal device and have device's axial flow turbine | |
| CN102808957B (en) | Butterfly valve | |
| CN203463666U (en) | Double mechanical seal structure for pump | |
| CN208397302U (en) | One kind being used for high pressure desludging pump mechanically-sealing apparatus | |
| CN208041180U (en) | A kind of antiwear SPE valve base sealing structures | |
| CN206738569U (en) | Seal, pressing device and pressure break Five-cylinder piston pump | |
| CN207178695U (en) | A kind of Double End spring mechanical sealing device | |
| CN203114429U (en) | High-pressure end face sealing structure for transmission shaft | |
| CN109654230A (en) | Hydraulic propeller mechanical sealing device used for pump | |
| CN201407354Y (en) | Improved mechanical seal structure | |
| CN87207494U (en) | Static-pressure balancer for a centrifugal pump | |
| CN206513835U (en) | A kind of unilateral fixed mechanical sealing mechanism | |
| CN215719479U (en) | Gear pump shaft sleeve | |
| CN210637412U (en) | Brake | |
| CN220792124U (en) | Ball valve with valve gap sealing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: WENZHOU ZHANGHENG TECHNOLOGY SERVICE CO., LTD. Free format text: FORMER OWNER: ZHANG YILI Effective date: 20141016 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Yue Inventor after: Chen Xianying Inventor after: Zhang Yili Inventor before: Zhang Yili |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG YILI TO: WU YUE CHEN XIANYING ZHANG YILI |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20141016 Address after: Longwan Puzhou Street District of Wenzhou City, Zhejiang province 325000 Xia Bu Cun Pujiang Bei Lu faculty Dormitory Room 202 Applicant after: Wenzhou Zhangheng Technology Service Co., Ltd. Address before: 325000 Zhejiang city of Wenzhou province small South Lucheng Guosheng building room 1-303 Applicant before: Zhang Yili |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Qiao Qizhi Inventor after: Jiang Siming Inventor after: Ge Qiang Inventor before: Wu Yue Inventor before: Chen Xianying Inventor before: Zhang Yili |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170330 Address after: 414000 Hunan province Yueyang Kemeida Road Economic Development Zone No. 8 Patentee after: Hunan Kemeida Electric Co., Ltd. Address before: Longwan Puzhou Street District of Wenzhou City, Zhejiang province 325000 Xia Bu Cun Pujiang Bei Lu faculty Dormitory Room 202 Patentee before: Wenzhou Zhangheng Technology Service Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191211 Address after: Bei Da Shu Cun Cun Xi, Fengrun District, Tangshan City, Hebei Province 063000 Patentee after: TANGSHAN ZHENGFENG IRON & STEEL CO., LTD. Address before: 414000 Hunan province Yueyang Kemeida Road Economic Development Zone No. 8 Patentee before: Hunan Komeida Electric Co., Ltd. |