CN102078781A - Thread guide - Google Patents
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- CN102078781A CN102078781A CN 201010582792 CN201010582792A CN102078781A CN 102078781 A CN102078781 A CN 102078781A CN 201010582792 CN201010582792 CN 201010582792 CN 201010582792 A CN201010582792 A CN 201010582792A CN 102078781 A CN102078781 A CN 102078781A
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- lead
- sealing gasket
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Abstract
The invention relates to a thread guide. The thread guide comprises a flange, a first gasket, a first sealing gasket, a second sealing gasket and a second gasket, wherein the bottom of a flange hole of the flange is provided with more than one thread guide holes; the first gasket, the first sealing gasket, the second sealing gasket and the second gasket are sequentially arranged in the flange hole; the center of the first gasket is provided with a first through hole, the surface on one side of the first gasket is provided with a first thread guide groove corresponding to the thread guide holes, and the first thread guide groove is communicated with the first through hole; the center of the first sealing gasket is provided with a second through hole, contact surfaces of the first sealing gasket and the second sealing gasket are provided with an annular convex pattern respectively, and the annular convex patterns of the first sealing gasket and the second sealing gasket are engaged with each other; and the center of the second gasket is provided with a third through hole, and the surface on one side of the second gasket is provided with a second thread guide groove. The thread guide is a single-hole multi-channel thread guide device which is based on a labyrinth seal principle and can be used for high-pressure reactors, and has the characteristics of good sealing performance, convenient and flexible use and the like.
Description
Technical field
The present invention relates to a kind of down-lead device, relate in particular to a kind of down-lead device that is applicable to autoclave.
Background technology
Especially autoclave is a large amount of scientific research and process units that use in chemical industry and the petrochemical field.The autoclave pressure that is used to produce mostly is 0-20MPa, and the reactor pressure that is used for scientific research can reach more than the 1GPa.When placement sensor in reactor or when transmitting light, the signal of telecommunication, need on the reactor wall, hole to pass lead.Because the requirement of high-pressure bottle intensity and structure, the size of fairlead, number, position all are subjected to strict restriction; And work as technique change, and when number of sensors changed, needing increased lead channels, and during extra openings, just the flow process that the entire reaction still can only be designed again, processes, checks and accepts wastes time and energy.Therefore, exploitation a kind of can by a hole draw multiple conducting wires and the lead-in wire technology that can adjust flexibly imperative.
Industrial lead-in wire method commonly used is to reserve big fairlead when reactor manufactures and designs in place at present, big fairlead passes through flange seal, and then according to process requirements, on ring flange, get out the conical aperture with the lead equivalent amount, fill in the conical junction pole of the copper that matches with conical bore in the aperture.The upper and lower side of conical rod is respectively terminals, and circular cone junction pole body as conductor exporting telecommunication number, is with the rubber sleeve of the same shape of one deck between conical rod and the conical bore.Utilize rubber sleeve deformation under high pressure to realize sealing, rubber sleeve has also played the effect of insulating flange dish and junction pole simultaneously.
Except that this common method, some relevant patent disclosures have been arranged at present, for example: CN86103609B discloses an a kind of leading technique of multiple wires from hole of vessel at high pressure, and ZL02221544.1 number (CN2520576Y) utility model patent discloses a kind of HTHP down-lead device.
Wherein, the disclosed technical scheme of CN86103609B is circular cone chuck and the circular cone plunger that the copper circular cone junction pole in the lead-in wire method commonly used is changed into the lucite material, lead (can many) is clipped in the groove pre-processed on circular cone chuck and the plunger, then under high temperature (90-135 ℃) with the circular cone chuck and the plunger of lucite, and metal ring flange fuses into the thread guide devices of an integral body.As sealed insulating material, realize lead and plunger, the sealing of plunger and ring flange and insulation by lucite.This patent deserves to be called the operating pressure of stating device and can reach more than the 2000MPa.
ZL02221544.1 number the disclosed HTHP down-lead device of (CN2520576Y) utility model patent then is to change the circular cone aperture on the ring flange in the common method into clear opening, and conical stem changes the stem that the two ends concentric reducer has step into.The stem microcephaly can be drawn by the ring flange aperture, and solidify by temperature programming with the mixture of a certain proportion of quartz sand+epoxy resin double-tube glue the ring flange bottom.The part that the stem microcephaly upward contacts with metallic walls realizes the sealing of stem major part and flange contact position with the insulation of high temperature insulating material realization stem as encapsulant with quartz sand+epoxy resin double-tube glue mixture.This patent claims that the operating pressure of this device can reach more than the 90MPa.
In actual production process, find above-mentioned three kinds of encapsulating methods, its pluses and minuses are all respectively arranged.
Conventional lead-in wire method sealing reliability height, insulating reliability depends on the intact degree of rubber insulation sleeve, can reduce along with the wearing and tearing of insulation sleeve; Can repair after the insulation damages, but waste time and energy; Lead is blocked by lead wire lever in spill process, can not be used for drawing the signal to the resistance variations sensitivity.The lead that equates with hole count can only be drawn, when needs expand lead channels, flange can only be processed again.
One leading technique of multiple wires from hole of the disclosed vessel at high pressure of CN86103609B, processing is simple, and sealed insulation is good when selecting suitable lucite material for use; Draw number of lead wires and can surpass number of aperture; Do not destroy the structure of lead in the lead-in wire process, can be used for drawing signal the resistance sensitivity; Its sealing effectiveness depends on the material of lucite fully, and the GB that China formulates has at present only been done requirement to physical indexs such as the size of the lucite that dispatches from the factory and light transmittances, its composition is not carried out the strictness constraint, therefore cause the product hermeticity of this patent extremely unstable.Even the lucite raw material of same producer different batches also might cause distinct sealing property difference; Conical plug has occupied space, most of hole, and when linear dimension was close outside aperture and the lead, when drawing the lead of external diameter Φ 1mm as need in the hole of internal diameter Φ 5mm, it is very difficult that the processing of conical plug just becomes.A spot of lucite consumption like this also is difficult to the space between effective bond wire and conical plug and conical plug and the flange wall.
The ZL02221544.1 number disclosed HTHP down-lead device of (CN2520576Y) utility model patent, processing method is more loaded down with trivial details, but simpler than conventional lead-in wire method, can be used for little inner diameter hole.The mixture of quartz sand and epoxy resin double-tube glue is adopted in the sealing of this down-lead device, processes simpler than the conical rubber sleeve of conventional method.Because its principle is identical with conventional lead-in wire scheme, therefore same pluses and minuses are arranged.As being blocked in the lead spill process, can not draw lead above hole count etc.; As the way change that goes between, just need process whole feed-through collar again.
Therefore, aspect the lead-in wire of high-pressure bottle, still lack at present and a kind ofly can be used for the lead-in wire method that little inner diameter hole, lead-in wire process do not destroy conductor structure and can increase number of leads flexibly.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide a kind of down-lead device, this down-lead device is a kind of single hole multichannel thread guide devices that can be used in autoclave based on the labyrinth seal principle, has good seal performance, characteristics such as flexibly easy to use.
The present invention also aims to provide a kind of lead-in wire method based on above-mentioned down-lead device.
For achieving the above object, the present invention at first provides a kind of down-lead device, and it belongs to a kind of single hole multichannel thread guide devices, and this down-lead device comprises flange, first pad, first sealing gasket, second sealing gasket and second pad, wherein,
The flange hole bottom of flange is provided with more than one fairlead;
First pad, first sealing gasket, second sealing gasket and second pad are set in turn in the flange hole;
The center of first pad is provided with first through hole, and a side surface of first pad is provided with the first lead-in wire groove corresponding with fairlead, and this first lead-in wire groove is communicated with first through hole;
The center of first sealing gasket is provided with second through hole, and the contact-making surface of first sealing gasket and second sealing gasket is respectively equipped with annular burr (the concrete quantity of burr can be set as required, preferably is provided with the multiple tracks burr), and the annular burr of the two is meshing with each other;
The center of second pad is provided with third through-hole, and a side surface of second pad is provided with the second lead-in wire groove.
Above-mentioned down-lead device provided by the invention is particularly suitable for high-pressure bottle, autoclave for example, and its operating pressure can reach 100MPa.The flange of this down-lead device can be provided with connecting hole, is used for fixing down-lead device, for example by bolt flange is fixed on the reactor, realizes fixing for down-lead device.
In above-mentioned down-lead device, a fairlead can be drawn many diameters and the approaching lead of fairlead internal diameter, and lead can not be cut off in the lead-in wire process.The number of fairlead can be provided with as required, after changing technology, increases fairlead if desired, down-lead device can be taken apart, drills through new fairlead in the flange hole bottom and gets final product.
In above-mentioned down-lead device provided by the invention, preferably, the shape of flange hole, first pad, first sealing gasket, second sealing gasket and second pad is circle.
In above-mentioned down-lead device provided by the invention, preferably, the material of first pad and second pad is a polytetrafluoroethylene (PTFE).
In above-mentioned down-lead device provided by the invention, the first lead-in wire groove and the second lead-in wire groove are respectively the passage of lead in first pad and second pad, and can realize fixing for lead.
In above-mentioned down-lead device provided by the invention, preferably, the first lead-in wire groove is along the diametric(al) setting of first pad, under user mode, is arranged in the first lead-in wire groove from the lead of fairlead.
In above-mentioned down-lead device provided by the invention, preferably, the second lead-in wire groove is along the diametric(al) setting of second pad, and, the second lead-in wire groove is located at the side surface that second pad contacts with second sealing gasket, under user mode, be arranged in the first lead-in wire groove from the lead of second subgasket edges.
Under user mode, after down-lead device assembled, be installed on the autoclave, the annular burr of first sealing gasket and second sealing gasket can be meshing with each other.Along with the rising of reacting kettle inner pressure, sealing gasket and pad generation deformation in the device can be filled up lead and sealing gasket, and the hole between sealing gasket, pad and the flange, realize sealing effectiveness.Can guarantee sealing between lead, sealing device and the flange not need additionally to install additional encapsulant in the deformation under the pressurized state by pad, sealing gasket etc.In above-mentioned down-lead device provided by the invention, preferably, the diameter of the diameter of first sealing gasket, second sealing gasket is identical with the diameter of flange hole, and above-mentioned three has identical diameter, helps to realize the sealing of down-lead device.First pad and and the diameter of second pad can be slightly less than the diameter of flange hole so that lead-in wire.
In above-mentioned down-lead device provided by the invention, preferably, the material of first sealing gasket and second sealing gasket is a rubber.More preferably, this rubber is acrylonitrile-butadiene rubber and/or silica gel etc.When adopting acrylonitrile-butadiene rubber, the operating temperature interval of down-lead device provided by the invention can reach-20 ℃-120 ℃.By the sealing gasket that adopts different rubber to make, can make down-lead device provided by the invention be applicable to different operating temperature interval and working environment, for example use high phenyl siloxane rubber, the operating temperature interval can reach-40 ℃ to 350 ℃; Adopt low-phenyl silicone rubber, minimum operating temperature can reach below-70 ℃; When adopting resistance oil silicone rubber, can work in the oil-containing hot environment.According to different needs, can select different sealing gaskets.
The present invention also provides a kind of method of utilizing above-mentioned down-lead device to go between, and it may further comprise the steps:
Make lead pass fairlead, the first lead-in wire groove, first through hole, second through hole successively, arrive between first sealing gasket and second sealing gasket, and enter the second lead-in wire groove, pass third through-hole then and finish lead-in wire through the edge of second sealing gasket.
Particularly, in the lead-in wire process, different leads passes fairlead and enters the corresponding first lead-in wire groove, arrives first through hole along the first lead-in wire groove and gathers, and passes first through hole and second through hole and enters between first sealing gasket and second sealing gasket; Then, the burr of lead on sealing gasket is converted into zigzag, enter on second pad in the corresponding second lead-in wire groove by the edge of second sealing gasket, and along the second lead-in wire groove arrival third through-hole, lead passes after the third through-hole, be connected in the device (for example sensor) in the reactor, finish the lead-in wire process.
When using the technology change, when needing to change number of leads, only need to take out lead, pad, sealing gasket, the pad of fairlead, processing belt shallow grooves and the sealing gasket that can mesh up and down again, assembling gets final product in order again.Number of leads only is subjected to fairlead aperture and wire diameter size restrictions on the flange.Under the constant situation of fairlead, can be in a big way ((0-n) * hole count, n is the maximum threading quantity of aperture, by the aperture, wire diameter, the wire arrangements mode determines) change lead channels quantity, for example on the flange that is drilled with 30 internal diameter Φ 2mm fairleads, can draw 50 leads.
The present invention also provides above-mentioned down-lead device as the purposes of autoclave with thread guide devices.
Down-lead device provided by the invention can be installed on the inwall of autoclave, just can realize the lead-in wire of multiple conducting wires by this down-lead device, and, can adjust the quantity of lead neatly.And above-mentioned down-lead device provided by the invention can be realized sealing by the deformation under the pressurized in the pressure process of reactor, do not need to adopt separately encapsulant to seal.And when reaction condition and lead-in wire need to change, as long as change the sealing gasket in the down-lead device or fairlead quantity is adjusted just passable, simple and easy, therefore, down-lead device of the present invention can adapt to the reaction vessel of various different conditions.
Compared with prior art, down-lead device provided by the present invention can be drawn multiple conducting wires by very little space from pressure vessel under the condition that does not change existing high-pressure installation and flange arrangement.And the number of conductors of down-lead device of the present invention can be adjusted flexibly, does not block in the lead spill process, does not need hot-working, and high-voltage performance is good, and cost easy to process is low.
Description of drawings
The following drawings only is intended to the present invention done and schematically illustrates and explain, not delimit the scope of the invention.Wherein:
The schematic cross-section of the down-lead device that Fig. 1 provides for embodiment;
The schematical top view of the down-lead device that Fig. 2 provides for embodiment;
The schematic diagram of first pad of the down-lead device that Fig. 3 provides for embodiment;
The schematic diagram of second pad of the down-lead device that Fig. 4 provides for embodiment;
Fig. 5 is the set-up mode schematic diagram of the lead between first sealing gasket and second sealing gasket;
The schematic diagram of first sealing gasket of the down-lead device that Fig. 6 provides for embodiment;
The schematic diagram of second sealing gasket of the down-lead device that Fig. 7 provides for embodiment.
The drawing reference numeral explanation:
Flange 1 first pad 2 first sealing gaskets 3 second sealing gaskets 4 second pads 5
Flange hole 6 fairleads 7 first through holes 8 first lead-in wire grooves 9 second through holes 10
Burr 11 third through-holes 12 second lead-in wire grooves 13 leads 14 connecting holes 15
The specific embodiment
Understand for technical characterictic of the present invention, purpose and beneficial effect being had more clearly, technical scheme of the present invention is carried out following detailed description, but but can not be interpreted as qualification practical range of the present invention referring now to Figure of description.
Embodiment
Present embodiment provides a kind of down-lead device, and its structure as shown in Figure 1.This down-lead device comprises flange 1, first pad 2, first sealing gasket 3, second sealing gasket 4 and second pad 5, wherein,
The bottom of the flange hole 6 of flange 1 (part that falls in the middle of the flange 1) is provided with more than one fairlead 7, as shown in Figure 2;
The above-mentioned down-lead device that present embodiment provides can go between in accordance with the following methods:
In use, can flange 1 be fixed on the reactor by flange connecting hole 15 usefulness bolts, the deformation of first pad 2 and second pad 5 (teflon gasket), first sealing gasket 3 and second sealing gasket 4 (acrylonitrile-butadiene rubber pad) can guarantee the sealing between lead, sealing device and the flange in pressure process, does not need additionally to install additional encapsulant.The operating pressure of this down-lead device can reach 100MPa, and operating temperature range is-20 ℃ to 120 ℃.
When technology change needs to change number of leads, only need to take out lead 14, first pad 2, second pad 5, first sealing gasket 3 and second sealing gasket 4, first pad 2 of the leaded groove of processing belt and second pad 5 again, assembling gets final product in order again.And, when operating temperature range changes, as long as sealing gasket is changed just passable.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. down-lead device, it comprises flange, first pad, first sealing gasket, second sealing gasket and second pad, wherein,
The flange hole bottom of described flange is provided with more than one fairlead;
Described first pad, first sealing gasket, second sealing gasket and second pad are set in turn in the described flange hole;
The center of described first pad is provided with first through hole, and a side surface of described first pad is provided with the first lead-in wire groove corresponding with described fairlead, and this first lead-in wire groove is communicated with described first through hole;
The center of described first sealing gasket is provided with second through hole, and the contact-making surface of described first sealing gasket and second sealing gasket is respectively equipped with annular burr, and the annular burr of the two is meshing with each other;
The center of described second pad is provided with third through-hole, and a side surface of described second pad is provided with the second lead-in wire groove.
2. down-lead device as claimed in claim 1, wherein, described flange is provided with connecting hole.
3. down-lead device as claimed in claim 2, wherein, the diameter of the diameter of described first sealing gasket, described second sealing gasket is identical with the diameter of described flange hole.
4. down-lead device as claimed in claim 2, wherein, the described first lead-in wire groove is along the diametric(al) setting of described first pad.
5. down-lead device as claimed in claim 2, wherein, the described second lead-in wire groove is along the diametric(al) setting of described second pad, and the described second lead-in wire groove is located at the side surface that described second pad contacts with described second sealing gasket.
6. down-lead device as claimed in claim 1, wherein, the material of described first sealing gasket and second sealing gasket is a rubber.
7. down-lead device as claimed in claim 6, wherein, described rubber is acrylonitrile-butadiene rubber and/or silica gel.
8. down-lead device as claimed in claim 1, wherein, the material of described first pad and second pad is a polytetrafluoroethylene (PTFE).
9. method of utilizing each described down-lead device of claim 1-8 to go between, it may further comprise the steps:
Make lead pass fairlead, the first lead-in wire groove, first through hole, second through hole successively, arrive between first sealing gasket and second sealing gasket, and enter the second lead-in wire groove, pass third through-hole then and finish lead-in wire through the edge of second sealing gasket.
10. each described down-lead device of claim 1-8 is as the purposes of autoclave with thread guide devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010582792XA CN102078781B (en) | 2010-12-10 | 2010-12-10 | Thread guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010582792XA CN102078781B (en) | 2010-12-10 | 2010-12-10 | Thread guide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102078781A true CN102078781A (en) | 2011-06-01 |
| CN102078781B CN102078781B (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010582792XA Expired - Fee Related CN102078781B (en) | 2010-12-10 | 2010-12-10 | Thread guide |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316093A (en) * | 2014-10-10 | 2015-01-28 | 中广核工程有限公司 | Sealing device of lead wires of pressure bearing container sensor |
| CN106286828A (en) * | 2015-05-20 | 2017-01-04 | 国家电网公司 | The method for blocking of electric metering box through wires hole |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62125845A (en) * | 1985-11-27 | 1987-06-08 | Toshiba Corp | Vacuum sealing device |
| JP2000166060A (en) * | 1998-11-26 | 2000-06-16 | Ishikawajima Harima Heavy Ind Co Ltd | Electric wire penetration device |
| CN2520576Y (en) * | 2002-02-04 | 2002-11-13 | 西南石油学院 | High-temp. high-voltage lead device |
| CN201209711Y (en) * | 2008-06-13 | 2009-03-18 | 中国人民解放军军事医学科学院卫生装备研究所 | Sealing arrangement for electric wire wall-penetration |
-
2010
- 2010-12-10 CN CN201010582792XA patent/CN102078781B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62125845A (en) * | 1985-11-27 | 1987-06-08 | Toshiba Corp | Vacuum sealing device |
| JP2000166060A (en) * | 1998-11-26 | 2000-06-16 | Ishikawajima Harima Heavy Ind Co Ltd | Electric wire penetration device |
| CN2520576Y (en) * | 2002-02-04 | 2002-11-13 | 西南石油学院 | High-temp. high-voltage lead device |
| CN201209711Y (en) * | 2008-06-13 | 2009-03-18 | 中国人民解放军军事医学科学院卫生装备研究所 | Sealing arrangement for electric wire wall-penetration |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316093A (en) * | 2014-10-10 | 2015-01-28 | 中广核工程有限公司 | Sealing device of lead wires of pressure bearing container sensor |
| CN104316093B (en) * | 2014-10-10 | 2017-10-31 | 中广核工程有限公司 | Pressure resistant vessel sensor outgoing line sealing device |
| CN106286828A (en) * | 2015-05-20 | 2017-01-04 | 国家电网公司 | The method for blocking of electric metering box through wires hole |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102078781B (en) | 2012-07-04 |
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