CN203963320U - Redundancy seals online signal piping joint - Google Patents

Redundancy seals online signal piping joint Download PDF

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Publication number
CN203963320U
CN203963320U CN201420275640.9U CN201420275640U CN203963320U CN 203963320 U CN203963320 U CN 203963320U CN 201420275640 U CN201420275640 U CN 201420275640U CN 203963320 U CN203963320 U CN 203963320U
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CN
China
Prior art keywords
axial projection
sealing
redundancy
piping joint
signal piping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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CN201420275640.9U
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Chinese (zh)
Inventor
张振华
唐强
徐善田
王立
张波
赵立乔
贺建华
戴维奇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Academy of Launch Vehicle Technology CALT
Beijing Institute of Space Launch Technology
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China Academy of Launch Vehicle Technology CALT
Beijing Institute of Space Launch Technology
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Priority to CN201420275640.9U priority Critical patent/CN203963320U/en
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Publication of CN203963320U publication Critical patent/CN203963320U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model redundancy seals online signal piping joint and relates to a kind ofly for the redundancy of the higher loading system of seal request is sealed to online signal piping joint, is particularly useful for confined space, small space.Its objective is in order to provide a kind of simple in structure, sealing reliably, the sealing effect that simultaneously can seal online signal piping joint to redundancy carries out the online a kind of redundancy detecting and seals online signal piping joint.The utility model redundancy seals online signal piping joint and comprises sealing seat, sealing cone, edge face sealing member, radial seal, fastening piece, detection tabs, sealing seat achieves a fixed connection by fastening piece with sealing cone, match with sealing cone front end in sealing seat rear end, in the end face direction of sealing seat and the fitting surface of sealing cone be respectively arranged with in the radial direction edge face sealing member and radial seal, between the fitting surface of edge face sealing member and radial seal and sealing seat and sealing cone, form sealed cavity, detection tabs is fixedly connected on sealing seat rear end and is connected with sealed cavity.Utilize this device can effectively prevent the seal failure problem of edge face sealing member in shrinkage situation.

Description

Redundancy seals online signal piping joint
Technical field
The utility model relates to a kind of pipe sealing structure, particularly relates to a kind of for the redundancy of the higher loading system of seal request is sealed to online signal piping joint.
Background technique
The loading system of the inflammable and explosive or toxic gas of some cryogenic loading systems such as Vehicle Fueling Station and some normal temperature, sealing requirements for pipe interface place is all higher, in some cryogenic loading systems, cryogenic media is because its boiling temperature is lower, make its metallic material contacting and nonmetallic material easily produce larger shrinkage, the in the situation that of the shrinkage of piping material low temperature, cause the seal action of existing pipe sealing structure greatly to reduce and even can cause seal failure; In addition, in prior art, in the time that the sealing configuration place in sealing system produces leakage, adopt existing seal-leak detection arrangement, it is convenient not and rapid to detect, and also more complicated of the program of detection device of the prior art and detection, cannot detect online seal leakage.In addition, in confined space, small space, personnel cannot carry out or be inconvenient to carry out redundancy sealing online signal piping joint sealing leak detection.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of simple in structure, sealing reliably, and the sealing effect that simultaneously can seal online signal piping joint to redundancy carries out the online redundancy detecting and seals online signal piping joint.
The utility model redundancy seals online signal piping joint, comprise sealing seat, sealing cone, edge face sealing member, radial seal, fastening piece, detection tabs, described sealing seat comprises the first axial projection, the first collar flange and the first welding ends, described the first axial projection, described the first collar flange and described the first welding ends are integrated to be made, described sealing cone comprises the second axial projection, the second collar flange and the second welding ends, described the second axial projection, described the second collar flange and described the second welding ends are integrated to be made, described fastening piece is arranged on described the first collar flange and described the second collar flange, described sealing seat and described sealing cone achieve a fixed connection by described fastening piece, described the first welding ends is connected with one end of pipeline, described the second welding ends is connected with the other end of pipeline,
Described the first axial projection, described the second axial projection are tapered collar, described the first axial projection is socketed in described the second axial raised outside, between described the first axial projection and described the second axial raised end face fitting surface, leave space, described edge face sealing member is between described the first axial projection and described the second axial raised end face fitting surface, described radial seal is O type circle, described O type circle is between described the first axial projection and described the second axial raised radial fit face
Described edge face sealing member, described radial seal, described the first axial raised inner peripheral surface and described the second axial raised outer circumferential face surround sealed cavity, in described the first axial projection, offer openings, one end of described openings is connected with described sealed cavity, in described the first axial projection, be fixedly connected with detection tabs, the other end of described openings is connected with described detection tabs.
The utility model redundancy seals online signal piping joint, on wherein said the second axial raised end face, offer the first ring-type seal groove, on described the first axial raised end face and on the position corresponding with described the first ring-type seal groove, be provided with sealing tenon, between described sealing tenon and described the first ring-type seal groove, form cavity, described edge face sealing member is positioned at described cavity.
The utility model redundancy seals online signal piping joint, on wherein said the second axial raised end face, offers the first ring-type seal groove, and described the first axial raised end face is planar end surface, and described edge face sealing member is positioned at described the first ring-type seal groove.
The utility model redundancy seals online signal piping joint, and the interior outside of wherein said the first ring-type seal groove is provided with the first chamfering, and the interior outside of described sealing tenon is provided with the second chamfering matching with the first chamfering.
A kind of redundancy of the utility model seals online signal piping joint, on wherein said the second axial raised male cone (strobilus masculinus), offers the second seal groove, and described radial seal is placed in described the second seal groove.
The utility model redundancy seals online signal piping joint, and wherein said O type circle is cold resistant rubber O type circle, metal O type circle, metal and nonmetal Blend materials O type circle.
The utility model redundancy seals online signal piping joint, wherein said detection tabs is cylindrical, the lower end of described detection tabs is fixedly connected with the first axial projection, the inside of described detection tabs offers the detection mouth of up/down perforation, described detection mouthful is connected with described openings, the upper end of described detection tabs offers outside thread, and the upper end of the described detection tabs sealed cap that has been threaded is provided with sealing gasket on the surface of contact of described sealed cap and described detection tabs.
The utility model redundancy seals online signal piping joint difference from prior art and is that the utility model redundancy seals online signal piping joint, comprise sealing seat, sealing cone, edge face sealing member and radial seal, fastening piece, detection device, the fitting surface of described sealing seat and described sealing cone is conical surface, conical surface plays certain leading role in the time that sealing seat docks with sealing cone, be conducive to accurately, convenient docking, in addition, conical surface is in the time of Butt sealing, need less axial pressure, conventionally end face seal needs larger axial pressure just can play seal action, on the end face of described fitting surface and male cone (strobilus masculinus), be respectively arranged with edge face sealing member and radial seal, owing to being also provided with radial seal, in the time that edge face sealing member produces leakage because of shrinkage, thereby prevent because the problem that causes seal failure is leaked in end face seal by the seal action of radial seal, radial seal is O type circle, radial seal adopts O type circle, because O type circle has larger decrement, stressed less in the situation that, O type circle just can produce larger distortion, O type circle is simple in structure simultaneously, can be mass, cost is low, be convenient to install and change, described edge face sealing member, described radial seal, described the first axial raised outer circumferential face and described the second axial raised inner peripheral surface surround sealed cavity, in the time that end face seal place produces Leakage Gas, the gas leaking enters in sealed cavity, in sealed cavity, form certain air pressure, in described the first axial projection, be fixedly connected with detection tabs, in described the first axial projection, offer openings, one end of described openings is connected with described sealed cavity, the other end of described openings is connected with described detection tabs, can connect some external detection equipment by detection tabs, thereby the sealability that realization seals online signal piping joint to redundancy detects online.A kind of redundancy of the utility model seals online signal piping joint and can be applied in ultralow temperature loading system, and in the higher inflammable and explosive system of normal temperature or toxic gas loading system of some seal requests, whole sealing device structure is simple, sealing reliability is strong, exploitativeness is strong, is easy to realize commercialization.
The utility model redundancy seals edge face sealing member described in online signal piping joint and is positioned at the cavity that described the first ring-type seal groove and described sealing tenon form, described radial seal is positioned at described the second seal groove, in the time that described sealing seat and described sealing cone is fastenedly connected by fastening piece, described edge face sealing member is by being pressed in the cavity that described the first ring-type seal groove and described sealing tenon formed tightly, thereby realizes the effective sealing of the counterface of described sealing seat and described sealing tenon; Described radial seal contacts with the conical surface of sealing cone, sealing seat under pressured state, forms effective radial seal, can also play certain dustproof effect to edge face sealing member simultaneously; The setting of described the first chamfering and the second chamfering, is convenient to play the effect of guide-localization in the time that sealing seat is connected with sealing cone; Described sealing gasket can prevent that sealed cap place is connected the leakage problem that cause in place with detection tabs; In the time carrying out airtight test in pipeline or have media flow, the sealed cap of slowly dismantling, in the process of unscrewing sealed cap, notice checking whether detection tabs has gas, if cannot determine whether that by detection tabs leakage maybe cannot determine bubble-tight effect, sealed cap all can be screwed down, then by detection device with detect interface be connected, the gas of revealing enters into detection device by detecting interface, then realizes by detection device the sealability detection that redundancy is sealed to online signal piping joint.
Below in conjunction with accompanying drawing, redundancy of the present utility model being sealed to online signal piping joint is described further.
Brief description of the drawings
Fig. 1 is the erection drawing that the utility model redundancy seals online signal piping joint;
Fig. 2 is the sectional drawing that the utility model redundancy seals online signal piping joint.
Embodiment
Embodiment 1
As depicted in figs. 1 and 2, the utility model redundancy seals online signal piping joint and comprises sealing seat 1, sealing cone 2, edge face sealing member 3 and radial seal, fastening piece 5, detection tabs 6, sealing seat 1 comprises the first axial projection 11, the first collar flange 12 and the first welding ends 13, sealing cone 2 comprises the second axial projection 21, the second collar flange 22 and the second welding ends 23, the first axial projection 11, the second axial projection 21 is tapered collar, the first axial projection 11 is socketed in the outside of the second axial projection 21, between the end face fitting surface of the first axial projection 11 and the second axial projection 21, leave space, fastening piece 5 has 8, fastening piece 5 is arranged on the first collar flange 12 and the second collar flange 22, sealing seat 1 achieves a fixed connection by fastening piece 5 with sealing cone 2, fastening piece 5 is matching used bolt and nut, the quantity of matching used bolt and nut is eight groups, eight groups of matching used bolt and nuts are uniformly distributed, the quantity of matching used bolt and nut can regulate according to the size of connecting pipeline latus rectum, the first welding ends 13 is connected with one end of pipeline, the second welding ends 23 is connected with the other end of pipeline.
On the end face matching, offer the first ring-type seal groove 211 in the second axial projection 21 and with the first axial projection 11, on the end face of the first axial projection 11 and on the position corresponding with the first ring-type seal groove 211, be provided with sealing tenon 111, between sealing tenon 111 and the first ring-type seal groove 211, form cavity, edge face sealing member 3 is positioned at cavity, edge face sealing member 3 can be sealing plain cushion, the interior outside of the first ring-type seal groove 211 is provided with the first chamfering, and the interior outside of sealing tenon 111 is provided with the second chamfering matching with the first chamfering.
On the male cone (strobilus masculinus) of the second axial projection 21, offer the second seal groove 212, radial seal is located in the second seal groove 212, radial seal is O type circle 4, and O type circle 4 can also be cold resistant rubber O type circle, metal O type circle, metal and nonmetal Blend materials O type circle.
Edge face sealing member 3, radial seal, the first axial projection 11 and the second axial projection 21 surround sealed cavity 7, in the first axial projection 11, be fixedly welded with detection tabs 6, detection tabs 6 is cylindrical, offer the detection mouth 61 of up/down perforation in detection tabs 6 inside, in the first axial projection 11, offer openings 8, one end of openings 8 is connected with sealed cavity 7, the other end of openings 8 is that inlet end is connected with the lower end of the detection mouth 61 of detection tabs 6, the upper end of detection tabs 6 is that outlet side is provided with outside thread, the outlet side of the detection mouth of detection tabs 6 is provided with sealed cap 62 by screw thread, be provided with sealing gasket 63 in detection tabs 6 and the joint of sealed cap 62.
In the time carrying out airtight test in pipeline or have media flow, the sealed cap 62 of slowly dismantling, unscrewing in the process of sealed cap 62, notice whether the outlet that checks detection tabs 6 has gas ejection, if cannot determine whether that by detection tabs leakage maybe cannot determine bubble-tight effect, sealed cap all can be screwed down, then in detection tabs 6, connect detection device, for example rubber hose or other flexible pipes are connected with inspection socket 61, the outlet of rubber hose or other flexible pipes is placed on to certain depth in water-soluble device, the mouth of pipe of observing flexible pipe has bubble-free generation, thereby realize the bubble-tight online detection to pipeline, can also be detection tabs 6 Bonding pressure sensors, gather data by cable leading to control room, can the each redundancy of remote centralized displaying seal the force value size of online signal piping joint, while reaching certain pressure value, carry out acoustooptic alarm, thereby the performance of end face primary seal is monitored, in addition, also can connect gas concentration detector by detection tabs, the data of collection to control room, are carried out acoustooptic alarm by cable leading while reaching normality, can remote centralized be monitored by the performance of each pipe interface sealing, and can realize more long-range monitoring to monitored data online, or detection tabs connecting pipeline, the pipeline that different redundancies is sealed to the detection tabs of online signal piping joint gathers, and the gas leaking is concentrated discharge, processed, and ensures that redundancy seals the safety at online signal piping joint scene.
Embodiment 2
Embodiment 2 is with embodiment 1 difference structurally: be planar end surface in the first axial projection 11 with the end face of first axial projection 11 matching of the second axial projection 21, in the first ring-type seal groove 211, be provided with edge face sealing member 3, edge face sealing member is U-shaped spring tension seal ring.
Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skill in the art make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.

Claims (7)

1. a redundancy seals online signal piping joint, it is characterized in that: comprise sealing seat (1), sealing cone (2), edge face sealing member (3), radial seal, fastening piece (5), detection tabs (6), described sealing seat (1) comprises the first axial projection (11), the first collar flange (12) and the first welding ends (13), described the first axial projection (11), described the first collar flange (12) and described the first welding ends (13) are integrated to be made, described sealing cone (2) comprises the second axial projection (21), the second collar flange (22) and the second welding ends (23), described the second axial projection (21), described the second collar flange (22) and described the second welding ends (23) are integrated to be made, described fastening piece (5) is arranged on described the first collar flange (12) and described the second collar flange (22), described sealing seat (1) achieves a fixed connection by described fastening piece (5) with described sealing cone (2), described the first welding ends (13) is connected with one end of pipeline, described the second welding ends (23) is connected with the other end of pipeline,
Described the first axial projection (11), described the second axial projection (21) is tapered collar, described the first axial projection (11) is socketed in the outside of described the second axial projection (21), between the end face fitting surface of described the first axial projection (11) and described the second axial projection (21), leave space, described edge face sealing member (3) is positioned between described the first axial projection (11) and the end face fitting surface of described the second axial projection (12), described radial seal is O type circle (4), described O type circle (4) is positioned between described the first axial projection (11) and the radial fit face of described the second axial projection (21),
The inner peripheral surface of described edge face sealing member (3), described radial seal, described the first axial projection (11) and the outer circumferential face of described the second axial projection (21) surround sealed cavity (7), in described the first axial projection, offer openings (8), one end of described openings (8) is connected with described sealed cavity (7), in described the first axial projection (11), be fixedly connected with detection tabs (6), the other end of described openings (8) is connected with described detection tabs (6).
2. redundancy according to claim 1 seals online signal piping joint, it is characterized in that: on the end face of described the second axial projection (21), offer the first ring-type seal groove (211), on the end face of described the first axial projection (11) and on the position corresponding with described the first ring-type seal groove (211), be provided with sealing tenon (111), between described sealing tenon (111) and described the first ring-type seal groove (211), form cavity, described edge face sealing member (3) is positioned at described cavity.
3. redundancy according to claim 1 seals online signal piping joint, it is characterized in that: on the end face of described the second axial projection (21), offer the first ring-type seal groove (211), the end face of described the first axial projection (11) is planar end surface, and described edge face sealing member (3) is positioned at described the first ring-type seal groove (211).
4. seal online signal piping joint according to the redundancy described in claim 2 or 3, it is characterized in that: the interior outside of described the first ring-type seal groove (211) is provided with the first chamfering, the interior outside of described sealing tenon (111) is provided with the second chamfering matching with the first chamfering.
5. redundancy according to claim 4 seals online signal piping joint, it is characterized in that: on the male cone (strobilus masculinus) of described the second axial projection (21), offer the second seal groove (212), described O type circle (4) is positioned at described the second seal groove (212).
6. redundancy according to claim 5 seals online signal piping joint, it is characterized in that: described O type circle (4) is cold resistant rubber O type circle, metal O type circle, metal and nonmetal Blend materials O type circle.
7. redundancy according to claim 6 seals online signal piping joint, it is characterized in that: described detection tabs (6) is for cylindrical, the lower end of described detection tabs (6) is fixedly connected with the first axial projection (11), the inside of described detection tabs (6) offers the detection mouth (61) of up/down perforation, described detection mouthful (61) is connected with described openings (8), the upper end of described detection tabs (6) offers outside thread, the upper end of described detection tabs (6) sealed cap (62) that has been threaded, on the surface of contact of described sealed cap (62) and described detection tabs (6), be provided with sealing gasket (63).
CN201420275640.9U 2014-05-27 2014-05-27 Redundancy seals online signal piping joint Expired - Fee Related CN203963320U (en)

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CN201420275640.9U CN203963320U (en) 2014-05-27 2014-05-27 Redundancy seals online signal piping joint

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104048125A (en) * 2014-05-27 2014-09-17 北京航天发射技术研究所 Redundant seal on-line detecting pipeline connector
CN106287045A (en) * 2016-08-29 2017-01-04 山东胜伟园林科技有限公司 A kind of water collect tank and collector pipe attachment structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104048125A (en) * 2014-05-27 2014-09-17 北京航天发射技术研究所 Redundant seal on-line detecting pipeline connector
CN106287045A (en) * 2016-08-29 2017-01-04 山东胜伟园林科技有限公司 A kind of water collect tank and collector pipe attachment structure

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141126

Termination date: 20200527

CF01 Termination of patent right due to non-payment of annual fee