CN104330225B - Leakage detection device for sealing filler - Google Patents
Leakage detection device for sealing filler Download PDFInfo
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- CN104330225B CN104330225B CN201410669913.2A CN201410669913A CN104330225B CN 104330225 B CN104330225 B CN 104330225B CN 201410669913 A CN201410669913 A CN 201410669913A CN 104330225 B CN104330225 B CN 104330225B
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Abstract
The invention discloses a leakage detection device for sealing filler, used for detecting seal leakage of sealing packing device. The sealing packing device includes: stuffing, sealing gland, valve stem and filler used for sealing the stuffing and the valve stem, and the sealing gland pressures above the filler. The leakage detection device includes a first lead leakage ring and a second lead leakage ring placed between the sealing gland and the filler, and the first lead leakage ring and the second lead leakage ring is set around the valve stem from top to bottom in turn. The first lead leakage ring defines a plurality of first lead leakage holes, and the second lead leakage ring defines a plurality of second lead leakage holes corresponding to the first lead leakage holes in number, and each first lead leakage hole is communicated with the first lead leakage hole. The detection device also includes a lead leakage tube, and the lead leakage tube is placed on the outside of the first lead leakage ring and communicates with the first lead leakage hole. The leakage detection device has simple structure, and is easy to operate, and can accurately detect leakage, thereby effectively judging sealing condition of sealing elements and providing a guarantee for the safe operation of equipment.
Description
Technical field
The present invention relates to the leak detecting device of a kind of airtight and watertight padding for detecting sealing packing device leakage situation.
Background technology
The airtight and watertight padding of stuffing-box is often there is, such as valve sealing filler at industrial circles such as nuclear power, thermoelectricity, the energy.Examine
Consider to the factor such as environmental protection, safety and economy, the sealing packing device of stuffing-box manufacture, install, debug or operate time
Waiting, not only it is to be appreciated that whether device exists leakage, but also it is to be appreciated that leakage rate is the most up to standard.Sealing to stuffing-box is filled out
The leakage rate of material carries out detection by quantitative and then becomes the key judging that can leakage rate meet permission leakage index, becomes judgement and seals
The key technology that system product is the most qualified.Meanwhile, during sealing device operating uses, whether sealing system is leaked
Detect, it is ensured that the safe operation of system, therefore, the sealing leak that can realize ground sealing system is detected and also becomes
Judge the key factor of sealing reliability.
Summary of the invention
It is an object of the invention to provide a kind of for the leaking medium in sealing packing device is qualitatively or quantitatively examined
Survey, simple in construction, the leak detecting device of easily operated airtight and watertight padding such that it is able to realize the leakage rate to sealing member or let out
The character of leakage medium is analyzed, and then the sealing situation of sealing member is made effective judgement, provides for equipment safety operation
Ensure.
For reaching above-mentioned purpose, the technical solution used in the present invention is: the leak detecting device of a kind of airtight and watertight padding, is used for
The sealing leak detection of sealing packing device, described sealing packing device include having packing cavity stuffing-box, be installed in described
Sealing gland on stuffing-box, the valve rod being plugged in the described packing cavity of described stuffing-box, it is filled in described packing cavity use
Airtight and watertight padding between described stuffing-box and described valve rod, described sealing gland is pressed on the top of described filler, described leakage
Detection device include be located between described sealing gland and described filler first draw leakage ring and second draw leakage ring, described first draws
Leakage ring draws leakage ring with described second and is from top to bottom sequentially sleeved on described valve rod, and described first draws and offer multiple the on leakage ring
One draws small opening, and all described first draws small opening draws on leakage ring along its circumferentially-spaced distribution described first, and each described first draws
Small opening upwardly extends from the described first bottom drawing leakage ring and runs through the described first radial outside drawing leakage ring, and described second draws
Offering multiple second on leakage ring and draw small opening, described second draws small opening, and draw the number of small opening with described first corresponding, Mei Gesuo
State second to draw small opening and draw extending radially through and upwardly extend in the middle part of it and drawing small opening with described first and be connected of leakage ring along described second,
Described leak detecting device also includes being fixedly arranged on described first and draws and draw, with described first, the leak-off connection that small opening is connected outside leakage ring.
Preferably, described second draws leakage is located in described packing cavity, and described leak detecting device also includes being located at described
First draws leakage ring and described second draws between leakage ring for the sealing member being tightly connected between the two.
It is further preferred that described sealing member includes the first sealing member and the second sealing member, described first sealing member is sheathed
Setting is sealed mutually, the cavity wall of described second sealing member and described packing cavity on described valve rod and with the circumferential sides of described valve rod
Seal setting mutually.
Drawing on leakage ring it is further preferred that described sealing member is located at described second, described second draws the upper end of leakage ring
It is further opened with two grooves being respectively used to install described first sealing member with described second sealing member.
Preferably, described leak detecting device also include being positioned at described leak-off connection outfan for detecting leaking medium
Detecting instrument.
It is further preferred that described first draws small opening at least, correspondingly, described leak-off connection the most at least,
Described detecting instrument is connected on the outfan of a wherein described leak-off connection.
It is further preferred that described first draws small opening at least two, correspondingly, described leak-off connection at least two, institute
State in leak detecting device also includes a described leak-off connection wherein the air accumulator being passed through purge gas, described detecting instrument
It is connected on remaining described leak-off connection outfan.
It is further preferred that described first draws small opening and have two, lay respectively at the described first radial direction two ends drawing leakage ring
And symmetrical setting, correspondingly, described leak-off connection has two, and wherein a described leak-off connection is connected to giving vent to anger of described air accumulator
Leak-off connection described in end, another root is connected to the input of described detecting instrument.
Preferably, described first draw small opening described first draw leakage ring on along same circumferencial direction uniform intervals be distributed, institute
State first drawing small opening is inverted L shape；Described second draw small opening described second draw leakage ring on divide along same circumferencial direction uniform intervals
Cloth, described second to draw small opening be inverted T shape.
Preferably, described second draw small opening also include along described second draw leakage ring the duct extended radially through, described duct
The port at two ends all offers the cannelure of an indent.
Due to the utilization of technique scheme, the present invention compared with prior art has the advantage that
1) the airtight and watertight padding leak detecting device simple in construction, easily operated, practical of the present invention；
2) sealing member design slip can be verified, thus verify the reasonability and safety that sealing member designs；
3) can be used for the leakage rate detection of (temperature, pressure, medium etc. change) under alternation working condition, and then can obtain
To the operating mode (temperature, pressure, medium etc.) of the sealing member corresponding relation between condition and leakage rate, thus can determine that sealing member work
Leakage rate under the conditions of work, the design such as connection member for sealing member and sealing member provides accurately data support；
4) situation of change of sealing member leakage rate under running conditions can be detected in time, according to operating condition and leakage rate
Relation, can determine whether the safe and effective situation sealed, and by the timely detection of leakage rate, can reach to leak marginal value in leakage rate
Before, take safe and effective measure in advance, it is ensured that sealing safe and reliable.The field that particularly some safety requirements are the highest, as
Nuclear power and petrochemical industry etc., by the timely detection to seal leakage amount, can monitor sealing in time the most reliable, transport safely for equipment
Row provides safety guarantee.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the leak detecting device of airtight and watertight padding of the present invention；
Structure when accompanying drawing 2 is to utilize the leak detecting device of airtight and watertight padding of the present invention to carry out qualitative and quantitative detection
Schematic diagram；
Accompanying drawing 3 be airtight and watertight padding of the present invention leak detecting device in first draw leakage ring structural representation；
Accompanying drawing 4 be airtight and watertight padding of the present invention leak detecting device in second draw leakage ring structural representation；
Wherein: 1, stuffing-box；2, filler；3, first draws leakage ring；31, first draws small opening；4, second draws leakage ring；41, second
Draw small opening；42, cannelure；51, the first sealing member；52, the second sealing member；6, leak-off connection；7, sealing gland；71, bolt hole；8、
Valve rod；9, air accumulator；10, detecting instrument.
Detailed description of the invention
Come below in conjunction with the accompanying drawings technical scheme is further elaborated.
Seeing shown in Fig. 1 to Fig. 4, the leak detecting device of a kind of airtight and watertight padding, the sealing for sealing packing device is let out
Missing inspection is surveyed, and this sealing packing device includes the stuffing-box 1 with packing cavity, the sealing gland 7 that is installed on stuffing-box 1, plug
Valve rod 8 in stuffing-box 1, be filled in packing cavity for airtight and watertight padding 2 between stuffing-box 1 and valve rod 8, this sealing gland
7 are pressed on filler 2 to prevent filler 2 from leaking.This leak detecting device includes between sealing gland 7 and filler 2
One draw leakage ring 3 and second draw leakage ring 4, first draw leakage ring 3 and second draw leak ring 4 be from top to bottom sequentially sleeved on valve rod 8, first
Drawing and offer multiple first on leakage ring 3 and draw small opening 31, all first draws small opening 31 draws on leakage ring 3 along its circumferentially-spaced point first
Cloth, each first draw small opening 31 from first draw leakage ring 3 bottom upwardly extend and run through this first draw leakage ring 3 footpath outside
Side, second draws and offers multiple second and draw small opening 41 on leakage ring 4, and second draws small opening 41, and draw the number of small opening 31 with first relative
Should, each second draws small opening 41 draws extending radially through and upwardly extend in the middle part of it and drawing small opening 31 with first and be connected of leakage ring 4 along second
Logical, this leak detecting device also include being fixedly arranged on first draw draw small opening 31 outside leakage ring 3 with first and be connected leak-off connection 6, use
In leaking medium being carried out the detecting instrument 10 that detection is analyzed.During detection, the warp successively of the leaking medium between stuffing-box 1 and valve rod 8
Cross and second draw small opening 41, first draw outside small opening 31, leak-off connection 6 delivery detection device, then by detecting instrument 10, this leakage is situated between
Matter is analyzed, and in the present embodiment, first draws leakage ring 3 and second draws and leak ring 4 and be metal and draw leakage ring, and first draws small opening 31 exists
First draws and is uniformly arranged along same circumferencial direction, and in inverted L shape on leakage ring 3；Second draws small opening 41 draws on leakage ring 4 along same second
One circumferencial direction is uniformly arranged, and in inverted T shape.
Shown in Figure 1, second draws leakage ring 4 is located in packing cavity, and leak detecting device also includes that being located at first draws leakage ring 3
And second draws the sealing member being tightly connected for both between leakage ring 4.In this embodiment, it is preferred that, this sealing member includes
First sealing member 51 and the second sealing member 52, the first sealing member 51 is set on valve rod 8 and seals mutually with the circumferential sides of valve rod 8
Arranging, the second sealing member 52 seals setting mutually with the cavity wall of packing cavity.It is further preferred that this sealing member is located at second draws leakage
On ring 4, the second upper end drawing leakage ring 4 is further opened with being respectively used to installing the first sealing member 51 and two of the second sealing member 52
Groove.Same, this sealing member can also be located on the first lower surface drawing leakage ring 3, and this sealing member can be sealing ring.
When leaking medium is detected, as only the leaking medium in sealing packing device carried out qualitative analysis,
Leaking medium is collected, analyzes by the method that then can use directly collection.Shown in Figure 1, first draws small opening 31 at least
Having one, correspondingly, be plugged in the first leak-off connection 6 drawing in small opening 31 the most at least, detecting instrument 10 is connected to wherein
On the outfan of a piece leak-off connection 6.Leaking medium successively through second draw small opening 41, first draw small opening 31 after discharged by leak-off connection 6
Outside detection device, after collection after a while, by detecting instrument 10, leaking medium is carried out qualitative analysis, determine this sealing
The leakage situation of filler device.
When leaking medium is detected, as leaking medium carried out quantitatively and during qualitative analysis, then can use and blow
Sweeping collection detection method and leaking medium is collected detection, shown in Figure 2, first draws small opening 31 at least two, correspondingly,
Second draws small opening 41 at least two, leak-off connection 6 the most at least two, and this detection device also includes a leak-off connection wherein
Being passed through the air accumulator 9 of purge gas in 6, here, purge gas is required to be the gas of effect corrosion-free to sealing member, at this
In embodiment, this gas is noble gas.In this leak-off connection 6, it is passed through noble gas so that this leak-off connection 6 by air accumulator 9
In, the packing medium of leakage is discharged this leak detecting device through the purging of this noble gas from remaining leak-off connection 6 in packing cavity,
Then it is collected this leaking medium and passes through detecting instrument 10 detection analyzing, i.e. can determine that the leakage rate of this filler 2 and be somebody's turn to do
The character of leaking medium.In the present embodiment, for the ease of detection, described first draws small opening 31 two, lays respectively at first
Drawing the radial direction two ends of leakage ring 3 and symmetrical setting, correspondingly, leak-off connection 6 has two, and wherein a leak-off connection 6 is connected to gas storage
The outlet side of tank 9, another root leak-off connection 6 are connected to the input of detecting instrument 10.During detection, open air accumulator 9, by drawing leakage
Pipe 6 is passed through noble gas in this leak detecting device, for purging leak-off connection 6 and all leaking mediums drawn in small opening, makes
Leaking medium is discharged from another root leak-off connection 6, then, is situated between this leakage by the detecting instrument 10 being connected on this leak-off connection 6
Matter is analyzed.
In order to make preferably to be connected between sealing gland 7 with stuffing-box 1, in the present embodiment, shown in Figure 1, close
Uniformly offering multiple bolt hole 71 on sealed cover 7 along same circumferencial direction, this sealing gland 7 passes through bolt passing through bolt hole
71 is detachably connected with stuffing-box 1.
Leaking medium enters and second draws in small opening 41 for convenience, shown in Figure 4, and second draws small opening 41 also includes along the
Two ducts extended radially through drawing leakage ring 4, the port at these two ends, duct is equipped with the cannelure 42 of an indent.
In sum, the leak detecting device of the airtight and watertight padding of the present invention, draws leakage ring by setting and draws drawing on leakage ring
Small opening, be connected to the leak-off connection that draws on small opening, can between stuffing-box and valve rod outside the airtight and watertight padding delivery detection device of leakage,
Instrument is analyzed detection the most after testing, determines amount and the character of leaking medium, thus judges the sealingly secure feelings of this system
Condition is to guarantee equipment safety operation, this simple in construction, easily operated.
Above-described embodiment, only for technology design and the feature of the explanation present invention, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and is carried out, and can not limit the scope of the invention with this, all according to the present invention
The equivalence that spirit is made changes or modifies, and all should contain within the scope of the present invention.
Claims (10)
1. a leak detecting device for airtight and watertight padding, the sealing leak for sealing packing device detects, described airtight and watertight padding
Device includes having the stuffing-box of packing cavity, the sealing gland being installed on described stuffing-box, is plugged in the institute of described stuffing-box
State the valve rod in packing cavity, be filled in described packing cavity for airtight and watertight padding between described stuffing-box and described valve rod, described
Sealing gland is pressed on the top of described filler, it is characterised in that: described leak detecting device includes being located at described sealing gland
And first between described filler is drawn leakage ring and second and draw leakage ring, described first draws leakage ring draws leakage ring from top to bottom with described second
Being sequentially sleeved on described valve rod, described first draws and offers multiple first and draw small opening on leakage ring, and all described first draws small opening
Drawing on leakage ring along its circumferentially-spaced distribution described first, each described first draws small opening from the described first bottom drawing leakage ring
Upwardly extending and run through the described first radial outside drawing leakage ring, described second draws and offers multiple second and draw small opening on leakage ring,
Described second draws small opening, and draw the number of small opening with described first corresponding, and each described second draws small opening draws leakage ring along described second
Extend radially through and upwardly extend in the middle part of it and draw small opening with described first and be connected, described leak detecting device also includes being fixedly arranged on
Described first draw leakage ring outside draw, with described first, the leak-off connection that small opening is connected.
The leak detecting device of airtight and watertight padding the most according to claim 1, it is characterised in that: described second draws leakage is located on
In described packing cavity, described leak detecting device also include being located at described first draw leakage ring and described second draw between leakage ring for
The sealing member being tightly connected between the two.
The leak detecting device of airtight and watertight padding the most according to claim 2, it is characterised in that: described sealing member includes first
Sealing member and the second sealing member, described first sealing member is set on described valve rod and seals mutually with the circumferential sides of described valve rod
Arranging, described second sealing member seals setting mutually with the cavity wall of described packing cavity.
The leak detecting device of airtight and watertight padding the most according to claim 3, it is characterised in that: described sealing member is located at described
Second draws on leakage ring, and the described second upper end drawing leakage ring is further opened with being respectively used to installing described first sealing member and described the
Two grooves of two sealing members.
The leak detecting device of airtight and watertight padding the most according to claim 1, it is characterised in that: described leak detecting device is also
Including the detecting instrument for detecting leaking medium being positioned at described leak-off connection outfan.
The leak detecting device of airtight and watertight padding the most according to claim 5, it is characterised in that: described first draws small opening at least
Having one, correspondingly, described leak-off connection the most at least, described detecting instrument is connected to the defeated of a wherein described leak-off connection
Go out on end.
The leak detecting device of airtight and watertight padding the most according to claim 5, it is characterised in that: described first draws small opening at least
Having two, correspondingly, described leak-off connection at least two, described leak detecting device also includes a described leak-off connection wherein
Inside being passed through the air accumulator of purge gas, described detecting instrument is connected on remaining described leak-off connection outfan.
The leak detecting device of airtight and watertight padding the most according to claim 7, it is characterised in that: described first draws small opening two
Individual, lay respectively at the described first radial direction two ends drawing leakage ring and symmetrical setting, correspondingly, described leak-off connection has two, wherein
A piece described leak-off connection is connected to leak-off connection described in the outlet side of described air accumulator, another root and is connected to the defeated of described detecting instrument
Enter end.
9. according to the leak detecting device of the arbitrary described airtight and watertight padding of claim 1 to 8, it is characterised in that: described first draws
Small opening draws described first and is distributed along same circumferencial direction uniform intervals on leakage ring, and described first to draw small opening be inverted L shape；Described
Two draw small opening draws described second and is distributed along same circumferencial direction uniform intervals on leakage ring, and described second to draw small opening be inverted T shape.
10. according to the leak detecting device of the arbitrary described airtight and watertight padding of claim 1 to 8, it is characterised in that: described second
Draw small opening and also include along the described second duct extended radially through drawing leakage ring, in the port at two ends, described duct all offers one
Recessed cannelure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410669913.2A CN104330225B (en) | 2014-11-20 | 2014-11-20 | Leakage detection device for sealing filler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410669913.2A CN104330225B (en) | 2014-11-20 | 2014-11-20 | Leakage detection device for sealing filler |
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| CN104330225A CN104330225A (en) | 2015-02-04 |
| CN104330225B true CN104330225B (en) | 2017-01-11 |
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| CN201410669913.2A Active CN104330225B (en) | 2014-11-20 | 2014-11-20 | Leakage detection device for sealing filler |
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Families Citing this family (14)
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|---|---|---|---|---|
| CN104728441A (en) * | 2015-03-27 | 2015-06-24 | 苏州宝骅机械技术有限公司 | Sealing component capable of sensing leakage |
| CN105004491B (en) * | 2015-07-06 | 2018-04-13 | 江苏科技大学 | A kind of diesel engine packing box seal online test method |
| CN104949811B (en) * | 2015-07-06 | 2018-03-06 | 江苏科技大学 | A kind of diesel engine packing box seal detection means |
| CN105067199B (en) * | 2015-08-13 | 2017-10-03 | 南京高精船用设备有限公司 | Dissection type NBG classes air-tightness bulkhead stuffing box experimental rig and its application |
| CN106052969B (en) * | 2015-09-23 | 2018-04-27 | 方正阀门集团有限公司 | Gas leak detection apparatus and method at a kind of valve rod filler |
| CN106033022A (en) * | 2016-05-16 | 2016-10-19 | 华东理工大学 | Pipe valve and detection device for leakage of medium at filler position thereof |
| CN106198220B (en) * | 2016-07-11 | 2020-04-03 | 苏州宝骅密封科技股份有限公司 | Method for detecting side pressure coefficient of sealing filler |
| CN107191669B (en) * | 2017-06-19 | 2023-12-15 | 苏州宝骅密封科技股份有限公司 | Leakage detection device for packing seal |
| CN107300041B (en) * | 2017-06-19 | 2018-12-07 | 苏州宝骅密封科技股份有限公司 | A kind of leaking medium collection method of packing seal |
| JP6904540B2 (en) * | 2018-01-17 | 2021-07-21 | 岩谷産業株式会社 | Leakage inspection equipment and leak inspection method |
| CN109357012B (en) * | 2018-10-30 | 2020-05-12 | 中船动力研究院有限公司 | Hierarchical formula packing box |
| CN109916569B (en) * | 2019-04-11 | 2020-06-05 | 重庆大学 | Sealing performance test system |
| CN112253859A (en) * | 2020-09-27 | 2021-01-22 | 中核核电运行管理有限公司 | Stress corrosion resistant loop valve leakage guide pipe connecting device and method |
| CN112361110A (en) * | 2020-09-27 | 2021-02-12 | 中核核电运行管理有限公司 | Connecting device and method for corrosion-resistant alloy bushing of leakage guide pipe of primary loop valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1828252A (en) * | 2006-04-06 | 2006-09-06 | 马志刚 | Sealing property testing equipment |
| CN101446510A (en) * | 2008-12-23 | 2009-06-03 | 南京工业大学 | Multifunctional multi-test piece sealing gasket life evaluation test device |
| CN103267670A (en) * | 2013-05-21 | 2013-08-28 | 苏州宝骅机械技术有限公司 | Detection device and method for detecting side pressure coefficient of filler |
| CN103939607A (en) * | 2013-01-22 | 2014-07-23 | 天华化工机械及自动化研究设计院有限公司 | Integrated shaft end sealing device |
| CN203906785U (en) * | 2014-04-15 | 2014-10-29 | 合肥华升泵阀股份有限公司 | Packing seal structure |
| CN204177533U (en) * | 2014-11-20 | 2015-02-25 | 苏州宝骅机械技术有限公司 | The leak detecting device of airtight and watertight padding |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7111498B2 (en) * | 2004-03-09 | 2006-09-26 | Gang Jin | Radiator inlet adapter |
| US7905494B2 (en) * | 2005-07-22 | 2011-03-15 | Eagle Industry Co., Ltd. | Mechanical seal device |
-
2014
- 2014-11-20 CN CN201410669913.2A patent/CN104330225B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1828252A (en) * | 2006-04-06 | 2006-09-06 | 马志刚 | Sealing property testing equipment |
| CN101446510A (en) * | 2008-12-23 | 2009-06-03 | 南京工业大学 | Multifunctional multi-test piece sealing gasket life evaluation test device |
| CN103939607A (en) * | 2013-01-22 | 2014-07-23 | 天华化工机械及自动化研究设计院有限公司 | Integrated shaft end sealing device |
| CN103267670A (en) * | 2013-05-21 | 2013-08-28 | 苏州宝骅机械技术有限公司 | Detection device and method for detecting side pressure coefficient of filler |
| CN203906785U (en) * | 2014-04-15 | 2014-10-29 | 合肥华升泵阀股份有限公司 | Packing seal structure |
| CN204177533U (en) * | 2014-11-20 | 2015-02-25 | 苏州宝骅机械技术有限公司 | The leak detecting device of airtight and watertight padding |
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| CN104330225A (en) | 2015-02-04 |
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Address after: Shuangfeng town Taicang city Suzhou City, Jiangsu province 215415 rich economic development zone Patentee after: Suzhou Bao Hua sealing Polytron Technologies Inc Address before: Shuangfeng town Taicang city Suzhou City, Jiangsu province 215415 rich economic development zone Patentee before: Suzhou Baohua Mechanical Technology Co., Ltd. |