CN102338223A - 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
- CN102338223A CN102338223A CN201010238414XA CN201010238414A CN102338223A CN 102338223 A CN102338223 A CN 102338223A CN 201010238414X A CN201010238414X A CN 201010238414XA CN 201010238414 A CN201010238414 A CN 201010238414A CN 102338223 A CN102338223 A CN 102338223A
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- Prior art keywords
- barrier film
- back flow
- differential pressure
- dynamic differential
- balace weight
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- 239000012530 fluid Substances 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 title abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 230000004888 barrier function Effects 0.000 claims description 61
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 239000000314 lubricant Substances 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000005755 formation reaction Methods 0.000 claims 2
- 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
- 230000009467 reduction Effects 0.000 description 14
- 230000008859 change Effects 0.000 description 3
- 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
- 230000006837 decompression Effects 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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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
Affiliated technical field
The present invention relates to fluid-tight 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 accelerate sealing part abrasion, shortening seal durability; All can leak after using a period of time, to the Sealing of to a certain degree just having to change because of wearing and tearing produce gradually.Even use emerging mechanical seal device in modern age, let traditional axial plane sealing convert compensable end face seal into, but the Maximum differential pressure that it can bear also is limited.Particularly in some specific environments, untimely or can't in time change Sealing, trickle leakage mixes even can cause accident to take place.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 specific environment because of trickle leakage mix the human catastrophe property consequence that possibly cause; But also lack dynamic differential pressure balance auto-control match equipment, therefore can't directly apply to actual operation.Both be in effective sealing all the time in order to ensure the lubricant oil that is transferred high-pressure liquid medium and back flow side, and the excessive pressure wearing and tearing arranged for again the axle surface of sealing part, potted line should gently contact preferably and not contact.This just must make the pressure reduction at sealing part two ends be controlled in the small pressure difference allowed band, preferably zero pressure difference.
Summary of the invention
The present 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 "; Be a kind ofly can guarantee to be transferred liquid medium and can never leak into lubricant oil or other media and mix; Make the sealing position be in the gas seal of gap or light pressure state, and sealing position frictional force is minimum, can also accomplishes to possess the novel fluid seal device of dynamic differential pressure balance auto-control.
The present invention adopts following technological scheme:
Between working space 17 and active side separate space 20, set up the active side barrier film dynamic differential pressure balace weight that constitutes by 8-15.This device is quoted the pressurized gas that are higher than the working space maximum pressure; Use active side barrier film dynamic differential pressure balace weight; Make to be between working space 17 and the active side separate space 20 or, thereby realize zerofriction force and security seal, guarantee that high-risk medium can not reveal near zero pressure difference;
Between transmission space 5 and back flow side separate space 7, set up the back flow side barrier film dynamic differential pressure balace weight that constitutes by 21-28.This device utilizes behind gap resistance pressure reduction passage 19, the flow through residual pressure of back flow side separate space 7 of pressurized gas; Use back flow side barrier film dynamic differential pressure balace weight; Make and be between transmission space 5 and the back flow side separate space 7 or near zero pressure difference; Thereby realize zerofriction force and security seal, guarantee that lubricant oil can not reveal;
In addition, the gap resistance pressure reduction passage 19 between back flow side separate space 7 and active side separate space 20 had both played decompression, more guaranteed isolating safely of high-risk medium and lubricant oil.
The novel fluid seal device of the band barrier film dynamic differential pressure balace weight after the improvement, owing to be to adopt the felt piece of membrane configuration as dynamic differential pressure balance auto-control, the sealing of self has also thoroughly eliminated, and directly utilizes the operating pressure differential auto-control.Advantage of the present invention is the pressure reduction balance all the time of having accomplished the Sealing two ends, and most advanced and sophisticated special technique fields such as high-risk medium of particularly suitable and superhigh pressure difference are in case after using, its influence power will be not second to the mechanical seal effect of back to the lifting means motive sealing that emerge.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further, all static seal places all represent with entity in the accompanying drawing.
Accompanying drawing is an a kind of embodiment's of the present invention structural representation.
In the accompanying drawings: the 1st, make rotation or reciprocating transmission shaft; The 2nd, the water-tight equipment isolating main bodies; The 3rd, lubricant oil and extraneous Sealing; The 4th, be in a pair of spring bearing or bearing shell in the lubricant oil; The 5th, transmission space, the 6th, the Sealing between transmission space and the back flow side separate space; The 7th, the back flow side separate space; The 8th, the lid side chamber passage of active side separate space and active side barrier film dynamic differential pressure balace weight, the lid lateral retaining plate through hole 9 of connection balance barrier film; The 9th, the lid lateral retaining plate through hole of active side balance barrier film; The 10th, the balance barrier film of active side; The 11st, the bar lateral retaining plate through hole of active side balance barrier film; The 12nd, the regulating rod of active side balance barrier film; The 13rd, control is from the dynamic regulation passage of high pressure (inertia) gas; The 14th, the bar side chamber passage of working space and active side barrier film dynamic differential pressure balace weight, the bar lateral retaining plate through hole 11 of connection balance barrier film; The 15th, the inlet passage of introduction high pressure (inertia) gas; The 16th, to being transferred the work actuator of liquid medium acting, like the impeller of pump head etc.; The 17th, working space; The 18th, the Sealing between working space and the active side separate space; The 19th, the gap resistance pressure reduction passage between back flow side separate space and the active side separate space; The 20th, the active side separate space; The 21st, the bar side chamber passage of back flow side separate space and back flow side barrier film dynamic differential pressure balace weight, the bar lateral retaining plate through hole 25 of connection balance barrier film; The 22nd, the dynamic regulation passage of control back flow side separate space gas pressure; The 23rd, the regulating rod of back flow side balance barrier film; The 24th, lead to the outlet passage of normal pressure atmosphere or negative pressure of vacuum; The 25th, the bar lateral retaining plate through hole of back flow side balance barrier film; The 26th, the balance barrier film of back flow side; The 27th, the lid lateral retaining plate through hole of back flow side balance barrier film; The 28th, the lid side chamber passage of transmission space and back flow side barrier film dynamic differential pressure balace weight, the lid lateral retaining plate through hole 27 of connection balance barrier film.
Component serial number 8,9,10,11,12,13,14,15 has constituted active 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 let back flow side separate space 7 directly press atmosphere usually.
Embodiment
When starting working; Owing to be in gap resistance pressure reduction passage between gap resistance pressure reduction passage 19 between back flow side separate space and the active side separate space and the transmission shaft 1; According to designing requirement; Regulate the regulating rod 12 of active side barrier film dynamic differential pressure balace weight and the regulating rod 23 of back flow side barrier film dynamic differential pressure balace weight in advance and arrive correct position; Make the two ends pressure reduction of the Sealing 6 between transmission space 5 and the back flow side separate space 7 and the two ends pressure reduction of the Sealing 18 between working space 17 and the active side separate space 20 all be close to zero pressure reduction, the regulating rod 12 of active side barrier film dynamic differential pressure balace weight and the regulating rod 23 of back flow side barrier film dynamic differential pressure balace weight keep static respectively and do not fluctuate under balance barrier film effect separately.So just can High Pressure Difference sealed the converted low differential pressure or even not have the pressure reduction sealing, making equipment be in light sealing load have leakage yet.
When the pressure of working space 17 is higher than active side separate space 20; Make the bar side of balance barrier film 10 of active side barrier film dynamic differential pressure balace weight stressed stressed and promote to move on the balance barrier film 10 related regulating rods 12 greater than the lid side; Control is increased from the dynamic regulation passage 13 of high pressure (inertia) gas; Active side separate space 20 pressure raise immediately, reach new balance.
Otherwise; When the pressure of working space 17 is lower than active side separate space 20; Make the lid side of balance barrier film 10 of active side barrier film dynamic differential pressure balace weight stressed stressed and promote balance barrier film 10 related regulating rods 12 and move down greater than the bar side; Control is dwindled from the dynamic regulation passage 13 of high pressure (inertia) gas, and active side separate space 20 pressure descend immediately, reach new balance.
In like manner; 5 pressure are higher than back flow side separate space 7 when the transmission space; Make the lid side of balance barrier film 26 of back flow side barrier film dynamic differential pressure balace weight stressed stressed and promote balance barrier film 26 related regulating rods 23 and move down greater than the bar side; The dynamic regulation passage 22 of control back flow side separate space gas pressure is dwindled; Then, cause back flow side separate space 7 pressure to raise, reach new balance from overflow (inertia) gas of the gap resistance pressure reduction passage 19 between back flow side separate space 7 and the active side separate space 20 gas more than the dynamic regulation passage 22 of flowing through.
Otherwise; When transmission space 5 pressure are lower than in back flow side separate space 7; Make the lid side of balance barrier film 26 of back flow side barrier film dynamic differential pressure balace weight stressed stressed and promote to move on the balance barrier film 26 related regulating rods 23 less than the bar side; The dynamic regulation passage 22 of control back flow side separate space gas pressure is increased; The gas that then is less than the dynamic regulation passage 22 of flowing through from overflow (inertia) gas of the gap resistance pressure reduction passage 19 between back flow side separate space 7 and the active side separate space 20 causes back flow side separate space 7 pressure to reduce, and reaches new balance.
So circulation; Convert the insoluble superhigh pressure difference problem of script into be convenient to control pressure reduction among a small circle; Even approach zero pressure difference, and make the axle surface at sealing position be in light pressure even stress-free gas seal, fundamentally alleviate wearing and tearing even do not have wearing and tearing.The notion of gas-dynamic sealing is likened to just as the appearance of magnetic levitation vehicle by the Professional visitors visually, also will have epoch making significance.
Claims (2)
1. novel fluid seal device with barrier film dynamic differential pressure balace weight; By making rotation or reciprocating transmission shaft (1), water-tight equipment isolating main bodies (2), be in a pair of spring bearing or bearing shell (4), transmission space (5), back flow side separate space (7) in the lubricant oil, work actuator (16), working space (17), the active side separate space institutes such as (20) that is transferred the liquid medium acting being formed; It is characterized in that: between working space (17) and active side separate space (20), set up active side barrier film dynamic differential pressure balace weight, it is from the bar side chamber passage (14) of dynamic regulation passage (13), working space and the active side barrier film dynamic differential pressure balace weight of high pressure (inertia) gas, the inlet passage formations such as (15) of introduction high pressure (inertia) gas by the regulating rod (12) of the axle lateral retaining plate through hole (11) of the balance barrier film (10) of the lid lateral retaining plate through hole (9) of the lid side chamber passage (8) of active side separate space and active side barrier film dynamic differential pressure balace weight, active side balance barrier film, active side, active side balance barrier film, active side balance barrier film, control.
2. a kind of novel fluid seal device according to claim 1 with barrier film dynamic differential pressure balace weight; It is characterized in that: between transmission space (5) and back flow side separate space (7), set up back flow side barrier film dynamic differential pressure balace weight, it is by the lid side chamber passage formations such as (28) of lid lateral retaining plate through hole (27), transmission space and the back flow side barrier film dynamic differential pressure balace weight of the balance barrier film (26) of the bar lateral retaining plate through hole (25) of the bar side chamber passage (21) of back flow side separate space and back flow side barrier film dynamic differential pressure balace weight, the dynamic regulation passage (22) of control back flow side separate space gas pressure, the regulating rod (23) of back flow side balance barrier film, the outlet passage (24) that leads to normal pressure atmosphere or negative pressure of vacuum, back flow side balance barrier film, back flow side, back flow side balance barrier film.
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 true CN102338223A (en) | 2012-02-01 |
| CN102338223B CN102338223B (en) | 2014-12-03 |
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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 |
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| CN (1) | CN102338223B (en) |
Cited By (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 |
Cited By (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 |
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| CN102338223B (en) | 2014-12-03 |
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| 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 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent of 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 |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG YILI TO: WU YUE CHEN XIANYING ZHANG YILI |
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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 |
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| 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 |
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| CB03 | Change of inventor or designer information | ||
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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. |
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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. |