CN104316093A - Sealing device of lead wires of pressure bearing container sensor - Google Patents
Sealing device of lead wires of pressure bearing container sensor Download PDFInfo
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- CN104316093A CN104316093A CN201410531147.3A CN201410531147A CN104316093A CN 104316093 A CN104316093 A CN 104316093A CN 201410531147 A CN201410531147 A CN 201410531147A CN 104316093 A CN104316093 A CN 104316093A
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Abstract
The invention provides a sealing device of lead wires of a pressure bearing container sensor. The sealing device comprises a sealing gasket assembly, a lead positioning structure, a base and a gland; the sealing gasket assembly is used for sealing the lead wires; the lead positioning structure is used for positioning the lead wires; the base is used for bearing the sealing gasket assembly; the gland is used for matching with the base in a compressed mode; a sealing chamber which is used for accommodating the sealing gasket assembly is formed between the base and the gland when the base and the gland are compressed; the sealing gasket assembly is provided with at least one sealing through hole for the lead wires to pass through; the lead wires detachably penetrate the lead positioning structure and the sealing gasket assembly. According to the sealing device of the lead wires of the pressure bearing container sensor, the plurality of lead wires can be sealed simultaneously, possible leakage points are reduced, and the detachment, the installation and the replacement of the lead wires are convenient.
Description
Technical field
The present invention relates to a kind of packoff, in particular, relate to a kind of pressure resistant vessel sensor outgoing line sealing device.
Background technology
Sensor for perception test object variation situation is installed in pressure resistant vessel, and the electric signal measured by sensor needs to be connected to transmit with external unit by extension line, extension line needs the pressure-bearing boundary through pressure resistant vessel, therefore proposes high requirement to the sealing property of structure pressure resistant vessel supplying extension line pass.
In addition, because the environment such as the flow field in pressure resistant vessel, vibration are very complicated, sensor and extension line thereof are very easily damaged, and not only will carry out good sealing to the structure that pressure resistant vessel passes for extension line, also will be convenient to dismounting and the replacing of sensor and extension line thereof.
In existing pressure resistant vessel, following three kinds can be divided into the encapsulating method of the extension line of sensor:
The first is on the wall of pressure resistant vessel, offer the extension line through hole passed for extension line, uses the pipe sealing with some strength direct for extension line embedding to be fixed on pressure resistant vessel.Pour into the space at extension line place to be sealed by liquid compound by mechanical or manual mode, be the thermosetting polymer insulating material of excellent performance after the solidification of this compound, and fit tightly with extension line the effect reaching sealing.
The second seal socket is arranged on the extension line through hole that pressure resistant vessel is offered, then contact pin is fixed on seal socket, the extension line of internal tank is connected with contact pin, the plug of external container and contact pin grafting, and seal socket and chamber wall adopt the method for O-ring seal to seal.
The third is the mode by compress gasket or filler, seals one by one every root wire.Its ultimate principle is by the pad in the finite space or filler, makes it deform to reach the effect of sealing.
Concrete a kind of outgoing line sealing device as shown in Figure 1, for sealing the extension line 3 be connected with strainometer, this outgoing line sealing device is arranged on extension line through hole 2 place that pressure resistant vessel 1 is offered.This outgoing line sealing device comprises seal head 101, combination sealing packing ring 102 and fluid sealant 103 and forms, wherein, seal head 101 has the external thread structure for being threaded with the extension line through hole 2 on pressure resistant vessel 1, and the root circumference of external thread structure is provided with boss 104, is provided with combination sealing packing ring 102 between boss 104 and pressure resistant vessel 1.Offering conical bore 105 in seal head 101, in hole, being filled with the fluid sealant 103 for sealing extension line 3.Seal head 101 offers multiple branch's through hole 106 be connected with conical bore 105 at the path end face of conical bore 105, is also filled with the fluid sealant 103 for fixing extension line 3 in each branch through hole 106.
But the method for this sealing extension line, owing to being provided with the hermetically-sealed construction between outgoing line sealing device and pressure resistant vessel, as the combination sealing packing ring 102 in Fig. 1, thus adding possible leakage point, increases the workload of daily servicing and inspection.In addition, using fluid sealant to seal is a kind of means of permanent attachment, cannot realize changing and dismounting single (root) of sensor and extension line, whole packoff and relative all the sensors and extension line can only be changed, cause maintenance cost high.
Concrete another kind of outgoing line sealing device as shown in Figure 2, this device comprises pedestal 201, O-ring seal 202, rubber ring 203, enclosing cover 204 and metal gasket 205.Pedestal 201 is ladder tubulose, and its underpart is provided with the external thread matched with the extension line through hole 2 offered on pressure resistant vessel 1, and its top is provided with the external thread matched with enclosing cover 204.Enclosing cover 204 is hat shape, and its inwall offers internal thread, and the end face center of enclosing cover 204 offers through hole and stretches out for extension line 3.Rubber ring 203 and metal gasket 205 are arranged in the inner chamber on pedestal 201 top successively, and O-ring seal 202 is enclosed within the external thread of pedestal 201 bottom.When tightening the screw thread between pedestal 201 and extension line through hole 2, the ledge structure press seal circle 202 on pedestal 201 is to realize the sealing between pedestal 201 and pressure resistant vessel 1.When tightening the screw thread between enclosing cover 204 and pedestal 201, enclosing cover 204 compresses rubber ring 203 by metal gasket 204, realizes the sealing between pedestal 201 and extension line 3.
But, the method of this sealing extension line is equally owing to being provided with the hermetically-sealed construction between outgoing line sealing device and pressure resistant vessel, as the O-ring seal 202 in Fig. 2 and rubber ring 203 etc., thus add possible leakage point and leakage point distribution do not concentrate, increase the workload of daily servicing and inspection.In addition, this packoff, due to the limitation of self structure, is not suitable for the pressure resistant vessel having large quantity sensor extension line to need sealing.
Concrete another kind of outgoing line sealing device as shown in Figure 3 and Figure 4, be mainly used in mounting and dismounting extension line fast, sealing device comprises pedestal 301, graphite gasket 302 and cover plate 303.The upper surface of pedestal 301 offers cross one another groove 304 and U-type groove 305, extension line 3 to be sealed is placed in U-type groove 305, graphite gasket 302 is placed in groove 304, the lower surface of cover plate 303 is provided with the boss (not shown) matched with groove 304, be bolted and holddown plate 303 and pedestal 301, make graphite gasket 302 crimp be positioned between the two, form sealing with the gap of filling between extension line 3 and groove 304 and U-type groove 305.
But the method for this sealing extension line is stretch out from the side of cover plate due to sealing extension line, and consider the minimum bending radius of extension line, need to reserve certain space so that cabling at packoff periphery, the installing space taken in actual use is larger.In addition, the gap between graphite gasket and groove is less, once graphite gasket is compressed in a groove, just can produce distortion and be close to the very difficult taking-up of wall, making unloading process comparatively difficult, be not easy to Fast Installation and the dismounting of described extension line.
Summary of the invention
The technical problem to be solved in the present invention is as solving defect of the prior art, provides a kind of and can seal that many extension lines, possible leakage point are less, overall sealing performance better, dirigibility is stronger simultaneously and be convenient to dismounting with the pressure resistant vessel sensor outgoing line sealing device of more emat sensor and extension line thereof.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of pressure resistant vessel sensor outgoing line sealing device, comprise the gasket seal assembly for sealing extension line, for locate described extension line lead-in wire location structure, for carry described gasket seal assembly base and for compressing the gland of described gasket seal assembly with described base engagement; When described base and described gland compress, between described base and described gland, form the annular seal space being used for accommodating described gasket seal assembly; Described gasket seal assembly offers the sealing through hole that at least one passes through for described extension line, described extension line is removably through described lead-in wire location structure and described gasket seal assembly.
Described gasket seal assembly comprises the first elastomeric pad and the second elastomeric pad, described sealing through hole comprise at least one be opened on described first elastomeric pad first sealing through hole and at least one be opened on described second elastomeric pad second sealing through hole; Described first sealing through hole and described second seals through hole and is interconnected.
Outside wall surface along described first elastomeric pad offers at least one first otch, and the internal face correspondence along described second elastomeric pad offers at least one second otch; Described first otch and described first seals through hole one_to_one corresponding and is interconnected, and described second otch and described second seals through hole one_to_one corresponding and is interconnected; Described first otch and corresponding described second otch interlock relative to the bearing of trend of described sealing through hole or arrange on the contrary.
Described first sealing through hole and described second seals through hole and coaxially arranges.
Described lead-in wire location structure comprises the support rim for carrying described gasket seal assembly, described support rim is circumferentially formed to projecting inward by the internal face of described base, described support rim offers the first opening that at least one passes for described extension line, the openend of described first opening is positioned on the internal face of described support rim.
The thickness of described support rim is 5 ~ 10mm, and the radical length that described support rim protrudes from described base is 20 ~ 40mm.
Described lead-in wire location structure also comprises and is arranged on pressure-bearing pad that is between described base and described gasket seal assembly and/or that be arranged between described gland and described gasket seal assembly; Described pressure-bearing pad offers second opening corresponding with described first opening, and the openend of described second opening is positioned in the outside wall surface of described pressure-bearing pad; The openend of described first opening and corresponding described second opening is oppositely arranged the positioning through hole formed for locating described extension line, and described positioning through hole is axially communicated with described sealing through hole.
Described first opening and described second opening are U-shaped groove, and described positioning through hole is manhole.
Described gland comprises cover plate for removably connecting with described base and for insert in described base and to form the briquetting of described annular seal space with described base engagement, described briquetting and described cover plate are interconnected.
Described briquetting is stepped vertically, comprises the first compressed part be connected with described cover plate and the second compressed part be connected with described first compressed part; The external diameter of described first compressed part and the internal diameter of described base match, and the external diameter of described second compressed part and the internal diameter of described support rim match; When described gland and described base compress, the lateral wall of the upper surface of described support rim, the lower surface of described first compressed part, the madial wall of described base and described second compressed part defines described annular seal space.
Circumference along described first compressed part is provided with at least one derivation through hole running through described gland vertically; When described gland and described base compress, described derivation through hole is connected with described sealing through hole.
Described base is fixed by welding in outside extension line through hole that pressure resistant vessel is offered, and described extension line through hole is connected with described base; The described extension line stretched out from described extension line through hole, stretches out after through described lead-in wire location structure and described sealing through hole from the derivation through hole that described gland is offered.
Implement pressure resistant vessel sensor outgoing line sealing device of the present invention, there is following beneficial effect:
1) positioning through hole in extension line location structure and the sealing through hole in gasket seal assembly, not only for extension line by carrying out effective location and sealing to extension line, and then can improve gasket seal assembly to the sealing effectiveness of extension line.
2) openend of the first opening on support rim and the second opening on pressure-bearing pad is oppositely arranged, the second otch that the first otch that first elastomeric pad is offered and the second elastomeric pad are offered is staggered relative to the bearing of trend sealing through hole or oppositely arrange, the overall tightness picking and placeing, avoid gasket seal assembly that this design feature is not only convenient to extension line lost efficacy, and can also avoid because of otch softened and problem such as sealing inefficacy caused after repeatedly changing extension line.
3) mode that is tightly connected of directly welding is adopted between pressure resistant vessel sensor outgoing line sealing device with extension line through hole pressure resistant vessel supplying extension line pass, sealing position is made to be only limitted near annular seal space and gasket seal assembly, decrease distribution and the quantity at sealing position, be convenient to daily servicing and inspection.
4) because stair-stepping gland is used for the annular seal space of accommodating gasket seal assembly with coordinating between base to be formed, different for holding the fixed sturctures such as the groove of sealing gasket from prior art, along with the taking-up of gland, the lateral pressure suffered by gasket seal assembly in annular seal space is removed completely, the lateral expansion of elastomeric pad obtains more natural and sufficient release, can not fit tightly with the internal face of base, thus more easily take out.
5) single pressure resistant vessel sensor outgoing line sealing device can extension line that simultaneously number of seals is more, and the extension line quantity that this pressure resistant vessel sensor outgoing line sealing device seals, can arrange flexibly according to actual conditions, when considering the extension line of sealing varying number, only need to change pressure-bearing pad and gasket seal assembly, without the need to changing whole packoff, while enhancing applicability and dirigibility, greatly reduce operation and maintenance cost.
6) the pressure-bearing pad in the present invention, gasket seal modular construction are simple, moderate dimensions, and it manufactures relative convenient with processing.Further, the series with varying number sealing through hole and opening can be provided according to the requirement of user, facilitate user to adjust according to actual conditions, reduce the operation and maintenance cost of user.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of an outgoing line sealing device in prior art;
Fig. 2 is the structural representation of another outgoing line sealing device in prior art;
Fig. 3 is the structural representation of another outgoing line sealing device in prior art;
Fig. 4 is the partial sectional view of outgoing line sealing device in Fig. 3;
Fig. 5 is the stereographic map of the pressure resistant vessel sensor outgoing line sealing device that a preferred embodiment of the present invention provides;
Fig. 6 is the sectional perspective cutting figure of pressure resistant vessel sensor outgoing line sealing device after removing gasket seal assembly in Fig. 5
Fig. 7 is the sectional perspective cutting figure of pressure resistant vessel sensor outgoing line sealing device in Fig. 5;
Fig. 8 is the stereographic map of pressure-bearing pad in Fig. 6;
Fig. 9 is the stereographic map of the first elastomeric pad in Fig. 6;
Figure 10 is the stereographic map of the second elastomeric pad in Fig. 6;
Figure 11 is the broken away view of gasket seal assembly in Fig. 6;
Figure 12 is the partial schematic diagram of pressure resistant vessel sensor outgoing line sealing device when being arranged on pressure resistant vessel in Fig. 5.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be understood that, specific embodiment described herein only for explaining the present invention, is not intended to limit the present invention.
As shown in Figure 5 and Figure 6, pressure resistant vessel sensor outgoing line sealing device comprise gasket seal assembly for sealing extension line 3, for locate extension line 3 lead-in wire location structure, for carry gasket seal assembly base 4 and for coordinating the gland 5 of press seal gasket assembly with base 4.
In the present embodiment, between base 4 and gland 5, adopt bolt 8 to removably connect, preferably, between bolt 8 and gland 5, be provided with fastening gasket 801.
Screwing bolts 8 can make base 4 and gland 5 coordinate press seal gasket assembly, be understandable that, the bolt that this dismountable connected mode is not limited in the present embodiment connects, and can also be other common modes that removably connect such as inlay card connection, be not specifically limited at this.
Base 4 has the receiving opening 401 running through self, and in the present embodiment, base 4 comprises taper 402 for being connected with gland 5 and the cylindricality sleeve pipe 403 for being connected with pressure resistant vessel.Preferably, base 4 is formed in one structure, and the minor diameter end face of taper 402 is connected with cylindricality sleeve pipe 403.Be understandable that, the concrete shape of base 4, not by restriction of the present invention, can also be the tubular structure etc. of ladder tubular structure, cylindricality.
Base 4 is circumferentially spaced apart on its major diameter end face is provided with multiple installation through hole 404, this installation through hole 404 axially extends to along taper 402 side wall surface running through taper 402, stretches out coordinate spacing with locating part (not shown) for bolt 8.
As shown in Figure 6, lead-in wire location structure comprises by the internal face of base 4 to projecting inward the formed support rim 405 for carrying gasket seal assembly, this support rim 405 is the annular protrusion of the internal face circumference setting around base 4, it offers the first opening 406 that at least one passes for extension line 3.The openend of the first opening 406 is opened on the internal face of support rim 405, positions so that snapped in the first opening 406 from openend one to one by extension line 3.
Preferably, the intensity in order to ensure support rim 405 ruptures to avoid appearance in the process of press seal gasket assembly, and the thickness of support rim 405 is 5 ~ 10mm, and its radical length scope protruding from receiving opening 401 inwall is 20 ~ 40mm.
Preferably, first opening 406 is U-shaped groove, and support rim 405 can offer 8 ~ 48 the first openings 406 according to physical size size, wherein, the opening of each the first opening 406 at the width 0.5mm larger than the diameter of extension line 3 along receiving opening 401 circumference, to facilitate picking and placeing of extension line 3.
Be understandable that, the number of the first opening 406 can be arranged according to actual needs, and its shape can have multiple common change, as long as be convenient to picking and placeing of extension line 3, therefore the number of the first opening 406 and shape are all not specifically limited at this.
Gland 5 comprises cover plate 501 and briquetting 502, and briquetting 502 is positioned at the side of cover plate 501 and its end face is connected with cover plate 501.
Preferably, cover plate 501 and briquetting 502 are formed in one.
Cover plate 501 offers the connecting through hole 503 running through self along its circumferential edge, this connecting through hole 503 with through hole 404 one_to_one corresponding is installed and is interconnected, guarantee that bolt 8 can pass connecting through hole 503 simultaneously and install through hole 404, to realize removably connecting between base 4 and gland 5.
Briquetting 502 is and base 4 and the coaxial circular tube structure arranged of cover plate 501, and briquetting 502 is stepped vertically because of external diameter change, comprises the first compressed part 504 be connected with cover plate 501 and the second compressed part 505 be connected with the first compressed part 504.
The external diameter of the first compressed part 504 and the internal diameter of receiving opening 401 match, to guarantee that briquetting 502 can insert in receiving opening 401 smoothly; The external diameter of the second compressed part 505 and the internal diameter of support rim 405 match, to guarantee that the second compressed part 505 can through the support rim 405 of ring-type.
Preferably, the sidewall of the first compressed part 504 is vertical with the end face of cover plate 501, and its external diameter is less than the external diameter of cover plate 501; The sidewall of the second compressed part 505 is vertical with the end face of the first compressed part 504, and its external diameter is less than the external diameter of the first compressed part 504.
Composition graphs 7, when gland 5 compresses with base 4, an annular annular seal space 6 for accommodating gasket seal assembly is defined between the lateral wall of the upper surface of support rim 405, the lower surface of the first compressed part 504, the madial wall of receiving opening 401 and the second compressed part 505, to retrain gasket seal assembly by the lateral expansion after compressing, guarantee that gasket seal assembly fully can be filled with a sealing chamber 6 to realize sealing after pressurized.
And, owing to being form annular seal space 6 by assembling between stair-stepping gland 5 and base 4, therefore, along with the taking-up of gland 5, the structure of annular seal space 6 will be destroyed, the lateral pressure suffered by gasket seal assembly be fastened in annular seal space 6 will be removed completely, and the lateral expansion of elastomeric pad obtains more natural and sufficient release, can not fit tightly with the internal face of base 4 and more easily take out.
Briquetting 502 also offers several axially run through cover plate 501 and the first compressed part 504 derivation through hole 506 along it, and derive through hole 506 and arrange along the circumferential interval of the first compressed part 504 and be uniformly distributed, its concrete number is identical with the number of the first opening 406.
Preferably, the aperture of deriving through hole 506 than the large 2-6mm of the diameter of extension line 3 so that the picking and placeing of extension line 3.
When gland 5 compresses with base 4, this derivation through hole 506 is axially communicated with annular seal space 6 and aligns one by one with the first opening 406, to guarantee that each extension line 3 of drawing from the first opening 406 is derived through hole 506 by one and stretched out.
As shown in Figure 7, gasket seal assembly is placed on support rim 405, and is fastened in annular seal space 6 when gland 5 compresses with base 4.Gasket seal assembly comprises the first elastomeric pad 702 and the second elastomeric pad 703.
Lead-in wire location structure also comprises for coordinating the pressure-bearing pad positioned extension line 3 with support rim 405, the stereographic map of the pressure-bearing pad 701 and 704 shown in composition graphs 8, pressure-bearing pad is annular gasket, the openend that its circumference offers the second uniform opening 705, second opening 705 is arranged in the outside wall surface of pressure-bearing pad.Pressure-bearing pad is for increasing contact area, better compresses the first elastomeric pad 702 and the second elastomeric pad 703.
In the present embodiment, pressure-bearing pad comprises the first pressure-bearing pad 701 and the second pressure-bearing pad 704.
First pressure-bearing pad 701 between the first elastomeric pad 702 and the first compressed part 504, for carrying the downforce of the first compressed part 504; Second pressure-bearing pad 704 to be placed on supporting boss 405 and between the second elastomeric pad 703 and supporting boss 405, for the upward pressure of bearing support boss 405.
Preferably, second opening 705 is the U-shaped groove of openend away from direction of axis line, and the first opening 406 is the U-shaped groove of openend towards direction of axis line, the openend of the first opening 406 and the second opening 705 is oppositely arranged the positioning through hole formed for locating extension line, namely the first opening 406 and the second opening 705 form a circular positioning through hole after superposing perpendicular to the projection in the plane of axial line, pass for extension line 3 and carry out effective location to extension line 3.
Preferably, the quantity of the second opening 705 is identical with the quantity of the first opening 406, its recess width 0.5mm larger than the diameter of extension line 3, namely the opening of each the second opening 705 is at the width 0.5mm larger than the diameter of extension line 3 along its circumference, thus guaranteeing can also effectively position the extension line 3 be arranged in the second opening 705 while extension line 3 can pass through smoothly.
Preferably, pressure-bearing pad 701 and 704 adopts metal material to make, its thickness range is 2 ~ 4mm, its radial width protrudes from the little 0.1-0.5mm of the radical length of receiving opening 401 inwall than supporting boss 405, to avoid the recurring structure when briquetting 502 inserts receiving opening 401 to interfere, affect the sealing property of annular seal space 6 because of scratch or the outside wall surface damaging briquetting 502.
Be understandable that, the concrete number of pressure-bearing pad can increase and decrease according to actual needs, adopts 2 pieces of pressure-bearing pads 701 and 704 just a kind of preferred embodiment, be not intended to limit the present invention in the present embodiment.
As shown in Figure 9, first elastomeric pad 702 is loop configuration, spaced apartly on it be provided with several first sealings through hole 702a, first sealing through hole 702a is uniformly distributed circumferentially and the positioning through hole one_to_one corresponding formed with the first opening 406 and the second opening 705 and being axially communicated with, and occurs the phenomenons such as unnecessary bending to avoid extension line 3 in sealing device.
Circumference along the first elastomeric pad 702 outside wall surface offers multiple first otch 702b, first otch 702b and first seals through hole 702a one_to_one corresponding and is interconnected, this first otch 702b extending radially outwardly and running through the both ends of the surface of the first elastomeric pad 702 along the first corresponding with it sealing through hole 702a.
Preferably, first elastomeric pad 702 can adopt the common elaxtic seals such as rubber to make, user can break the first otch 702b into two with one's hands certain interval, is then snapped in along the first otch 702b by extension line 3 from the outside of the first elastomeric pad 702 and is attached thereto the first logical sealing through hole 702a.
Preferably, the thickness of the first elastomeric pad 702 is 3-10mm, and its radial width protrudes from the little 0.1-0.5mm of the radical length of receiving opening 401 inwall, to avoid occurring constructive interference than supporting boss 405.The aperture 0.1mm larger than the diameter of extension line 3 of the first sealing through hole 702a.
As shown in Figure 10, second elastomeric pad 703 is similarly loop configuration, also spaced apartly on it be provided with at least one second sealing through hole 703a, second sealing through hole 703a is uniformly distributed circumferentially and seal through hole 702a to align one by one and axis is communicated with first, occurs the phenomenons such as unnecessary bending to avoid extension line 3 in sealing device.
Each second sealing through hole 703a offers one in the edge near the second elastomeric pad 703 axis and extends to the second otch 703b on the second elastomeric pad 703 internal face, this second otch 703b extending radially inwardly and running through the both ends of the surface of the second elastomeric pad 703 along the second corresponding with it sealing through hole 703a, the second otch 703b and corresponding second seal through hole 703a one_to_one corresponding and be interconnected with it.
Preferably, second elastomeric pad 703 can adopt the common elaxtic seals such as rubber to make, user can break the second otch 703b into two with one's hands certain interval, is then snapped in along the second otch 703b by extension line 3 from the inner side of the second elastomeric pad 703 and is attached thereto the second logical sealing through hole 703a.
Preferably, the thickness of the second elastomeric pad 703 is 3-10mm, and its radial width protrudes from the little 0.1-0.5mm of the radical length of receiving opening 401 inwall, to avoid occurring constructive interference than supporting boss 405.The aperture 0.1mm larger than the diameter of extension line 3 of the second sealing through hole 703a.
First sealing through hole 702a and second seals through hole 703a and coaxially arranges, to reduce unnecessary the bending of extension line 3.
Shown in Figure 11, pressure-bearing pad 704 is placed on supporting boss 405, the openend of the first opening 406 (see Fig. 6) and the second opening 705 is oppositely arranged, and namely both form the positioning through hole passed for extension line 3 after perpendicular to the projection superposition in the plane of axial line.Second elastomeric pad 703 is placed on pressure-bearing pad 704, and the first elastomeric pad 702 overlays on the second elastomeric pad 703.
The sealing through hole that gasket seal assembly is offered comprises the first sealing through hole 702a and second sealing through hole 703a, and sealing through hole and positioning through hole axial connection pass through for extension line 3.
First otch 702b is through to the first sealing through hole 702a from the outside of the first elastomeric pad 702, second otch 703b is then through to the second sealing through hole 703a from the inner side of the second elastomeric pad 703, first otch 702b and the second otch 703b are staggered relative to the bearing of trend sealing through hole or arrange on the contrary, can prevent extension line 3 from departing from from gasket seal assembly along wherein any one otch.
Pressure-bearing pad 701 and 704, supporting boss 405, first elastomeric pad 702 and the second elastomeric pad 703 are when stacking, make whole gasket seal assembly only form several manholes passed for extension line 3 after perpendicular to the projection superposition in the plane of axial line, can ensure that gasket seal assembly has sealing and locating effect preferably; Simultaneously, it all offers the opening or otch being convenient to pick and place extension line 3, and make when stacking these openings or otch relative or arranged in a crossed manner, avoid opening or otch to overlap, and then avoid extension line 3 to depart from from gasket seal assembly along any one otch or opening.
Be understandable that, the first otch 702b on first elastomeric pad 702 and the second elastomeric pad 703 and the second otch 703b is staggered relative to the bearing of trend of sealing through hole or arrange on the contrary, needs to combinationally use and could while the easy dismounting realizing extension line 3, also can prevent extension line 3 from use departing from gasket seal assembly.Only employ one group of elastomeric pad in the present embodiment, but its concrete group number does not do concrete restriction at this, two groups or more elastomeric pad also can be set according to the size of annular seal space 6.
Stereographic map when Figure 12 pressure resistant vessel sensor outgoing line sealing device shown in the present invention is arranged on pressure resistant vessel 1, the top cover of pressure resistant vessel 1 offers the extension line through hole 2 of drawing at least one extension line 3, the base 4 of pressure resistant vessel sensor outgoing line sealing device is directly welded on extension line through hole 2.Extension line through hole 2 is connected with receiving opening 401, extension line 3 is stretched out from extension line through hole 2, stretches out from the derivation through hole 506 gland 5 through the gasket seal assembly in receiving opening 401, annular seal space 6.
If need to change single extension line or removable parts sensor and extension line thereof:
First will remove bolt 8 and gland 5 of moving away, after being removed by the gland 5 of staircase structure, the lateral expansion of the gasket seal assembly in annular seal space 6 obtains and discharges comparatively fully, no longer fits tightly with the internal face of base 4, is thus easy to take out.
Then, the pressure-bearing pad be placed on support rim 405 and gasket seal component integration are shifted out, the extension line 3 needing to change is taken out by the otch in the second opening 705 of pressure-bearing pad and the second pressure-bearing pad 704 and the second elastomeric pad 703.
Finally, then by new extension line 3 replacing of extension line 3 or sensor and extension line thereof is completed according to the contrary step of dismounting.
Implement pressure resistant vessel sensor outgoing line sealing device of the present invention, there is following beneficial effect:
1) the sealing through hole that the second sealing through hole 703a that the first sealing through hole 702a that the positioning through hole that the second opening 705 that the first opening 406 supporting boss 405 offered and pressure-bearing pad are offered is formed and the first elastomeric pad 702 are offered and the second elastomeric pad 703 are offered is formed, not only for extension line 3 by positioning extension line 3, and then can ensure that gasket seal assembly has good sealing effectiveness to extension line 3.
2) openend of the first opening 406 and the second opening 705 is oppositely arranged, first otch 702b and the second otch 703b is staggered relative to the bearing of trend sealing through hole or oppositely arrange, the overall tightness picking and placeing, avoid gasket seal assembly that this design feature is not only convenient to extension line lost efficacy, and can also avoid because of otch softened and problem such as sealing inefficacy caused after repeatedly changing extension line.
Specifically, the first otch 702b that two elastomeric pads are offered and the second otch 703b is staggered relative to the bearing of trend of sealing through hole or contrary, has following advantage:
A. picking and placeing of sensor extension line is convenient to, because extension line 3 can directly pick and place from the opening of lead-in wire location structure or in the otch of gasket seal assembly in the present invention, without the need to using other specific purpose tools or special operative skill, and the replacing of single (or local) extension line can be realized.
B. prevent the first otch 702b on two elastomeric pads placing up and down and the second otch 703b to lose efficacy when compressive deformation is to realize sealing simultaneously, thus cause the overall tightness of gasket seal assembly to lose efficacy.
Owing to needing the compressive deformation by elastomeric pad self to fill gap between extension line 3 to realize sealing at the first otch 702b, the second otch 703b and sealing through hole, therefore these positions also just become the node most possibly causing seal failure to be leaked.
When the first otch 702b and the second otch 703b is staggered relative to the bearing of trend of sealing through hole or when arranging on the contrary, even if the first otch 702b and the equal seal failure of the second otch 703b, but because these two otch do not overlap, and the surface of contact of these two elastomeric pads placed up and down is in impaction state, so the overall tightness of gasket seal assembly also can not lose efficacy.
On the contrary, if the first otch 702b is identical relative to the bearing of trend of sealing through hole with the second otch 703b, namely the upper-lower position correspondence of the first otch 702b and the second otch 703b overlaps, then when the equal seal failure of the first otch 702b and the second otch 703b, gasket seal assembly has just directly been penetrated, thus causes the overall tightness of gasket seal assembly to lose efficacy.
C. after repeatedly changing or dismantling extension line 3, the first otch 702b and the second otch 703b may softenedly be out of shape, and when the compressive deformation of elastomeric pad self is also difficult to the compressed gap of having filled extended, will cause the seal failure of gasket seal assembly.In the present invention, the first otch 702b and the second otch 703b is adopted then can effectively to address this problem relative to the staggered or contrary setting of the bearing of trend of sealing through hole.
3) mode that is tightly connected of directly welding is adopted between pressure resistant vessel sensor outgoing line sealing device with the extension line through hole 2 pressure resistant vessel supplying extension line 3 pass, sealing position is made to be only limitted near annular seal space 6 and gasket seal assembly, decrease distribution and the quantity at sealing position, be convenient to daily servicing and inspection.
4) because stair-stepping gland 5 is used for the annular seal space 6 of accommodating gasket seal assembly with coordinating between base 4 to be formed, different for holding the fixed sturctures such as the groove of sealing gasket from prior art, along with the taking-up of gland 5, the lateral pressure suffered by gasket seal assembly in annular seal space 6 is removed completely, the lateral expansion of elastomeric pad obtains more natural and sufficient release, can not fit tightly with the internal face of base 4, thus more easily take out.
5) in the present invention, single pressure resistant vessel sensor outgoing line sealing device can extension line 3 that simultaneously number of seals is more.In addition, the quantity of the otch on the opening in the application on pressure-bearing pad and gasket seal assembly, the quantity of the extension line 3 that can seal needed for single packoff is arranged flexibly, as long as the higher limit of the sealing number of openings considered when being no more than initial designs.
When bearing interior pressure, seal request and being lower, can not use pressure-bearing pad, the gasket seal assembly only needing to select sealing number of openings to match with it according to the quantity of actual extension line 3 can (quantity of the first elastomeric pad and the otch on the second elastomeric pad and corresponding sealing through hole should with the quantity of actual extension line 3 identical and one_to_one corresponding).
When bearing interior pressure, seal request and being higher, gasket seal assembly is needed to coordinate pressure-bearing pad to use, the pressure-bearing pad that the gasket seal assembly selecting sealing number of openings to match with it according to the quantity of actual extension line 3 and open amount match with it, the quantity of the open amount namely on pressure-bearing pad, the first elastomeric pad 702 and the second elastomeric pad 703 upper cut and corresponding sealing through hole should identical with the quantity of actual extension line 3 respectively and one_to_one corresponding.
6) the pressure-bearing pad in the present invention, gasket seal modular construction are simple, moderate dimensions, and it is relative convenient with processing to manufacture.Further, the series with varying number sealing through hole and opening can be provided according to the requirement of user, facilitate user to adjust according to actual conditions, reduce the operation and maintenance cost of user.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.
Claims (12)
1. a pressure resistant vessel sensor outgoing line sealing device, it is characterized in that, comprise the gasket seal assembly for sealing extension line (3), for locate described extension line (3) lead-in wire location structure, for carry described gasket seal assembly base (4) and for coordinating the gland (5) compressing described gasket seal assembly with described base (4); When described base (4) compresses with described gland (5), between described base (4) and described gland (5), form the annular seal space (6) being used for accommodating described gasket seal assembly; Described gasket seal assembly offers the sealing through hole that at least one passes through for described extension line (3), described extension line (3) is removably through described lead-in wire location structure and described gasket seal assembly.
2. pressure resistant vessel sensor outgoing line sealing device according to claim 1, it is characterized in that, described gasket seal assembly comprises the first elastomeric pad (702) and the second elastomeric pad (703), described sealing through hole comprise at least one be opened on described first elastomeric pad (702) first sealing through hole (702a) and at least one be opened on described second elastomeric pad (703) second sealing through hole (703a); Described first sealing through hole (702a) and described second seals through hole (703a) and is interconnected.
3. pressure resistant vessel sensor outgoing line sealing device according to claim 2, it is characterized in that, outside wall surface along described first elastomeric pad (702) offers at least one first otch (702b), and the internal face correspondence along described second elastomeric pad (703) offers at least one second otch (703b);
Described first otch (702b) and described first seals through hole (702a) one_to_one corresponding and is interconnected, and described second otch (703b) and described second seals through hole (703a) one_to_one corresponding and is interconnected; Described first otch (702b) and corresponding described second otch (703b) are interlocked relative to the bearing of trend of described sealing through hole or arrange on the contrary.
4. pressure resistant vessel sensor outgoing line sealing device according to claim 2, is characterized in that, described first sealing through hole (702a) and described second seals through hole (703a) and coaxially arranges.
5. pressure resistant vessel sensor outgoing line sealing device according to claim 1, it is characterized in that, described lead-in wire location structure comprises the support rim (405) for carrying described gasket seal assembly, described support rim (405) is circumferentially formed to projecting inward by the internal face of described base (4), described support rim (405) offers the first opening (406) that at least one passes for described extension line (3), the openend of described first opening (406) is positioned on the internal face of described support rim (405).
6. pressure resistant vessel sensor outgoing line sealing device according to claim 5, it is characterized in that, the thickness of described support rim (405) is 5 ~ 10mm, and the radical length that described support rim (405) protrudes from described base (4) is 20 ~ 40mm.
7. pressure resistant vessel sensor outgoing line sealing device according to claim 5, it is characterized in that, described lead-in wire location structure also comprises and is arranged on pressure-bearing pad that is between described base (4) and described gasket seal assembly and/or that be arranged between described gland (5) and described gasket seal assembly;
Described pressure-bearing pad offers second opening (705) corresponding with described first opening (406), the openend of described second opening (705) is positioned in the outside wall surface of described pressure-bearing pad; The openend of described first opening (406) and corresponding described second opening (705) is oppositely arranged the positioning through hole formed for locating described extension line (3), and described positioning through hole is axially communicated with described sealing through hole.
8. pressure resistant vessel sensor outgoing line sealing device according to claim 7, is characterized in that, described first opening (406) and described second opening (705) are U-shaped groove, and described positioning through hole is manhole.
9. pressure resistant vessel sensor outgoing line sealing device according to claim 5, it is characterized in that, described gland (5) comprises cover plate (501) for removably connecting with described base (4) and for insert in described base (4) and to coordinate the briquetting (502) forming described annular seal space (6) with described base (4), described briquetting (502) and described cover plate (501) are interconnected.
10. pressure resistant vessel sensor outgoing line sealing device according to claim 9, it is characterized in that, described briquetting (502) is stepped vertically, comprises the first compressed part (504) be connected with described cover plate (501) and the second compressed part (505) be connected with described first compressed part (504); The external diameter of described first compressed part (504) and the internal diameter of described base (4) match, and the external diameter of described second compressed part (505) and the internal diameter of described support rim (405) match;
When described gland (5) and described base (4) compress, the upper surface of described support rim (405), the lower surface of described first compressed part (504), the madial wall of described base (4) and the lateral wall of described second compressed part (505) define described annular seal space (6).
11. pressure resistant vessel sensor outgoing line sealing devices according to claim 10, it is characterized in that, the circumference along described first compressed part (504) is provided with at least one derivation through hole (506) running through described gland (5) vertically; When described gland (5) compresses with described base (4), described derivation through hole (506) is connected with described sealing through hole.
12. pressure resistant vessel sensor outgoing line sealing devices according to claim 1, it is characterized in that, described base (4) is fixed by welding in extension line through hole (2) that pressure resistant vessel (1) is offered outward, and described extension line through hole (2) is connected with described base (4); The described extension line (3) stretched out from described extension line through hole (2), stretches out after through described lead-in wire location structure and described sealing through hole from the derivation through hole (506) that described gland (5) is offered.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720438A (en) * | 2016-04-11 | 2016-06-29 | 哈尔滨建成集团有限公司 | Switching plate for temperature-height test |
| CN106122093A (en) * | 2016-08-11 | 2016-11-16 | 温州捷高科技有限公司 | A kind of cable mounting structure of water pump |
| CN111208163A (en) * | 2018-11-21 | 2020-05-29 | 中国科学院化学研究所 | Inflatable/air-pumping type XPS (extruded polystyrene) freezing-quasi-in-situ sample transfer device |
| CN114993571A (en) * | 2022-06-13 | 2022-09-02 | 中国石油天然气集团有限公司 | Effective sealing section evaluation device for cement ring under alternating internal pressure |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243097A (en) * | 1998-07-28 | 2000-02-02 | 秦彪 | Parallel plate type water-cooling ozone generator |
| CN2529194Y (en) * | 2002-03-12 | 2003-01-01 | 甘肃兰金民用爆炸高新技术公司 | Safety electric igniting device |
| CN2563381Y (en) * | 2002-07-31 | 2003-07-30 | 张小高 | Diaphragm type electromagnetic water valve |
| CN2713445Y (en) * | 2004-07-13 | 2005-07-27 | 刘吉川 | Built-in electrode sensor for steam drum water level |
| CN201321932Y (en) * | 2008-11-12 | 2009-10-07 | 广西玉柴机器股份有限公司 | Structure for sealing wire harness of oil injector |
| CN101738281A (en) * | 2008-11-20 | 2010-06-16 | 昆山双桥传感器测控技术有限公司 | Improved wind load pressure sensor |
| CN201560120U (en) * | 2009-12-18 | 2010-08-25 | 孙长海 | Rubber hose connector provided with car recognition device and used for oiling machine |
| CN101887958A (en) * | 2010-06-24 | 2010-11-17 | 朝阳立塬新能源有限公司 | Double-ended leading-out low internal resistance power storage device |
| CN102078781A (en) * | 2010-12-10 | 2011-06-01 | 中国石油大学(北京) | Thread guide |
| CN203386591U (en) * | 2013-08-19 | 2014-01-08 | 杭州钱江变压器组件有限公司 | Sleeve pipe capable of being monitored in real time |
-
2014
- 2014-10-10 CN CN201410531147.3A patent/CN104316093B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1243097A (en) * | 1998-07-28 | 2000-02-02 | 秦彪 | Parallel plate type water-cooling ozone generator |
| CN2529194Y (en) * | 2002-03-12 | 2003-01-01 | 甘肃兰金民用爆炸高新技术公司 | Safety electric igniting device |
| CN2563381Y (en) * | 2002-07-31 | 2003-07-30 | 张小高 | Diaphragm type electromagnetic water valve |
| CN2713445Y (en) * | 2004-07-13 | 2005-07-27 | 刘吉川 | Built-in electrode sensor for steam drum water level |
| CN201321932Y (en) * | 2008-11-12 | 2009-10-07 | 广西玉柴机器股份有限公司 | Structure for sealing wire harness of oil injector |
| CN101738281A (en) * | 2008-11-20 | 2010-06-16 | 昆山双桥传感器测控技术有限公司 | Improved wind load pressure sensor |
| CN201560120U (en) * | 2009-12-18 | 2010-08-25 | 孙长海 | Rubber hose connector provided with car recognition device and used for oiling machine |
| CN101887958A (en) * | 2010-06-24 | 2010-11-17 | 朝阳立塬新能源有限公司 | Double-ended leading-out low internal resistance power storage device |
| CN102078781A (en) * | 2010-12-10 | 2011-06-01 | 中国石油大学(北京) | Thread guide |
| CN203386591U (en) * | 2013-08-19 | 2014-01-08 | 杭州钱江变压器组件有限公司 | Sleeve pipe capable of being monitored in real time |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720438A (en) * | 2016-04-11 | 2016-06-29 | 哈尔滨建成集团有限公司 | Switching plate for temperature-height test |
| CN106122093A (en) * | 2016-08-11 | 2016-11-16 | 温州捷高科技有限公司 | A kind of cable mounting structure of water pump |
| CN106122093B (en) * | 2016-08-11 | 2019-01-01 | 温州捷高科技有限公司 | A kind of cable mounting structure of water pump |
| CN111208163A (en) * | 2018-11-21 | 2020-05-29 | 中国科学院化学研究所 | Inflatable/air-pumping type XPS (extruded polystyrene) freezing-quasi-in-situ sample transfer device |
| CN114993571A (en) * | 2022-06-13 | 2022-09-02 | 中国石油天然气集团有限公司 | Effective sealing section evaluation device for cement ring under alternating internal pressure |
| CN114993571B (en) * | 2022-06-13 | 2024-06-04 | 中国石油天然气股份有限公司 | Device for evaluating effective sealing section of cement sheath under alternating internal pressure |
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