CN203463833U - Sealing assembly for butt-joint of high-temperature high-pressure gas pipelines - Google Patents
Sealing assembly for butt-joint of high-temperature high-pressure gas pipelines Download PDFInfo
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- CN203463833U CN203463833U CN201320604435.8U CN201320604435U CN203463833U CN 203463833 U CN203463833 U CN 203463833U CN 201320604435 U CN201320604435 U CN 201320604435U CN 203463833 U CN203463833 U CN 203463833U
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- butt
- high temperature
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Abstract
The utility model discloses a sealing assembly for the butt-joint of high-temperature high-pressure gas pipelines. The sealing assembly for the butt-joint of the high-temperature high-pressure gas pipelines comprises a spherical joint which is a hollow body, a pipe joint nozzle which is a hollow body and an outer sleeve nut which is a hollow cylinder. One end of the spherical joint is in a spherical head shape, a protruding shoulder used for containing a sealing ring is arranged on the end, in the spherical head shape, of the spherical joint, and the other end of the spherical joint is communicated with one high-temperature high-pressure pipeline. The periphery of the end portion of one end of the pipe joint nozzle is provided with outer threads, a concave hole matched with the spherical head of the spherical joint is formed in the end face of the end, with the outer threads, of the pipe joint nozzle, and the other end of the pipe joint nozzle is communicated with one high-temperature high-pressure pipeline. Inner threads are arranged on the inner wall face of the outer sleeve nut, and the outer sleeve nut is coaxially arranged outside the spherical joint in a sleeved mode. When butt-joint sealing is carried out, the spherical head of the spherical joint is embedded in the concave hole of the pipe joint nozzle and is clamped tightly, the spherical head and the concave hole are made to squeeze mutually to form linear sealing, the inner threads of the outer sleeve nut and the outer threads of the pipe joint nozzle are screwed tightly, and thus the butt-joint sealing is achieved. The sealing assembly for the butt-joint of the high-temperature high-pressure gas pipelines can carry out dual-sealing on high-pressure gas under 1000DEG C, is strong in adaptability to normal temperature sealing and high temperature sealing, and can be used for carrying out the butt-joint on pipelines related to high-temperature and high-pressure gas.
Description
Technical field
The utility model belongs to pipeline joint technical field of sealing technology, is specifically related to a kind of black box for high temperature and high pressure gas pipeline joint.
Background technique
Sealing technique is in automobile and machinery industry extensive uses such as valve, pipeline joint, instrument installations, but temperature is reached to the gas sealing structure of 1000 ℃, still lacks mature technology.Rubber, polyethylene only can be used at 100 ℃, and PTFE composite material also can only be used in 300 ℃.At present, for 600 ℃ of following gas seals, often adopt red copper pad to seal by extrusion-deformation, temperature is elevated to 600 ℃ when above, and the red copper gasket seal long period is exposed in high-temperature gas and there will be high temperature deformation to cause seal failure.Also having a kind of seal form is high-temp glue sealing, but this seal form cannot realize dismounting, and maintenance is poor, and serviceability temperature can not be too high.When gas pressure is too high, a lot of sealing configurations, in order to reach sealing effect, cause complex structural designs in addition, and volume increases, and concerning sensitive instrument and equipment, bulk is limited, and the sealing configuration that volume is too large cannot meet usage requirement.
The at present docking of High Temperature High Pressure pipeline is widely used, and its applied environment is normally in more than 800 ℃ temperature, pressure more than 10MPa, and this has proposed new test to sealing technique.The sealing technique of above-mentioned routine as sealing materials such as rubber, polyethylene, PTFE composite material and red copper pads, can not meet that elevated-temperature seal, maintenance are good, the requirement such as strong adaptability, volume are little conventionally simultaneously.
Model utility content
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of black box for high temperature and high pressure gas pipeline joint, it utilizes line contact between bulb and connecting-tube nozzle to form the first resealing, with carbon seal ring, between bulb and connecting-tube nozzle, radially form the second resealing simultaneously, thereby can meet the sealing docking between the high-pressure gas pipeline under normal temperature and the condition of high temperature.
For achieving the above object, the concrete technological scheme that the utility model adopts is as follows:
For a black box for high temperature and high pressure gas pipeline joint, can realize the Butt sealing of two High Temperature High Pressure pipelines, it is characterized in that, sealing assembly comprises:
Spherical joint, it is hollow article, one end is bulb shape, which is provided with the convex shoulder for accommodating seal ring, the other end and wherein a High Temperature High Pressure pipeline connection;
Connecting-tube nozzle, it is hollow article, and end, one end periphery is provided with outside thread, and this end end face has the shrinkage pool coordinating with the bulb of described spherical joint, the other end and another High Temperature High Pressure pipeline connection;
Cap nut, it is hollow cylinder, and internal face is provided with internal thread, and its coaxial package is outside described spherical joint;
During Butt sealing, described in the bulb of described spherical joint embeds, connect in the shrinkage pool of mouth pipe and clamp, this bulb and mutually push formation linear sealing with shrinkage pool, and screw with the external thread spiro fastening that connects mouth pipe by the internal thread of this cap nut, thereby achieve a butt joint sealing.
As present invention further optimization, on the convex shoulder of described bulb, be socketed with carbon seal ring, when it pushes mutually at described bulb with shrinkage pool by this carbon seal ring extruding, this bulb with shrinkage pool between formation face contact sealing.
As present invention further optimization, described shrinkage pool is the horn mouth that aperture inwardly reduces gradually, and described carbon seal ring external diameter is larger than this horn mouth maximum inner diameter.
As present invention further optimization, the end face aperture, cylindrical shell one end of described cap nut is less than the Probe-radius of described spherical joint, but be greater than the diameter with described High Temperature High Pressure pipeline connection end, thereby the pipeline connecting end that makes described spherical joint through after this end face with High Temperature High Pressure pipeline connection, and bulb end can promote to enter in described shrinkage pool by this end face under the screwing of this cap nut.
As present invention further optimization, described spherical joint, connecting-tube nozzle and cap nut all adopt high-temperature titanium alloy manufacture.
As present invention further optimization, described carbon seal ring adopts Expanded graphite manufacture, can bear the temperature of 1000 ℃.
In the utility model, spherical joint contacts sealing for forming linearity with connecting-tube nozzle, for carbon seal ring provides positive stop lug boss.Connecting-tube nozzle is containing outside thread, for supporting with cap nut, by screw-threaded coupling, realizes and the close contact of spherical joint.Cap nut is enclosed within the outside of spherical joint, during pipeline joint and connecting-tube nozzle pass through screw-threaded coupling.Carbon seal ring is elevated-temperature seal part, between spherical joint external diameter and connecting-tube nozzle internal diameter, forms radial seal.
In the utility model, when in pipeline, gas is normal temperature state, the close contact forming between spherical joint and connecting-tube nozzle meets seal request, when in pipeline, gas temperature raises, if the seal failure between spherical joint and connecting-tube nozzle, carbon seal ring still can continue to provide sealing effect.
In the utility model, adopt spherical joint and carbon seal ring that two resealing guarantees are provided, improve reliability, when normal temperature and high temperature, can meet the Butt sealing between high-pressure gas pipeline.Spherical joint, connecting-tube nozzle and cap nut all adopt high-temperature alloy steel manufacture.Carbon seal ring adopts the manufacture of high-temperature flexible graphite, and spherical joint can carry out axial limiting to carbon seal ring, and connecting-tube nozzle can carry out lateral extrusion to carbon seal ring, forms drive fit, carbon seal ring is carried out to axial limiting simultaneously.The outside thread of cap nut and connecting-tube nozzle can drive between spherical joint and carbon seal ring and connecting-tube nozzle and form close contact after tightening.Carbon seal ring can replace with other materials according to gas temperature in pipeline.
The utility model adopts the contact of bulb line and seal ring to reach double seal effect, can realize the high-pressure gas pipeline Butt sealing under normal temperature and the condition of high temperature simultaneously, and volume is little, lightweight, strong adaptability, maintenance are good.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment's black box;
Fig. 2 is the explosive view of the utility model embodiment's black box;
Fig. 3 is the sectional drawing of the utility model embodiment's black box.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearer, below in conjunction with accompanying drawing, the present invention is further elaborated.If only in order to explain the present invention, do not limit the present invention when explanation relates to instantiation herein.In addition involved technical characteristics in each mode of execution of the present invention who the following describes, just can not mutually combine as long as do not form each other conflict.
As shown in FIG. 1 to 3, in an embodiment of the present utility model, black box comprises spherical joint 1, connecting-tube nozzle 2, cap nut 3 and carbon seal ring 4.
Wherein, spherical joint 1 adopts high-temperature titanium alloy manufacture, and the sphere diameter of bulb part is 6mm, and outer diameter of step is than the little 0.2～0.3mm of the external diameter of carbon seal ring.
Connecting-tube nozzle 2 adopts high-temperature titanium alloy manufacture, inside has horn mouth, and bell-mouthed angle is 60 °, forms good contact face with bulb, and maximum inner diameter, than the little 0.1～0.2mm of the external diameter of carbon seal ring, has screw thread outward simultaneously.
Cap nut 3 adopts high-temperature titanium alloy manufacture, and inwall has been attacked screw thread, and it coordinates with connecting-tube nozzle 2 outside threads, and minimum diameter is less than the maximum outside diameter of spherical joint 1 simultaneously, guarantees that cap nut 3 can drive spherical joint 1 and connecting-tube nozzle 2 to come in contact in rotary course.
The internal diameter of carbon seal ring 4 coordinates with diameter before spherical joint 1 step, external diameter is than the large 0.2～0.3mm of the maximum outside diameter of spherical joint 1, than the large 0.1～0.2mm of the maximum inner diameter of connecting-tube nozzle 2, large 0.1mm is wanted in the gap after Thickness Ratio spherical joint 1 and connecting-tube nozzle 2 contacts simultaneously.
After spherical joint 1, connecting-tube nozzle 2 are welded with pipeline, rotary sleeve nut 3, spherical joint 1 is locked by cap nut 3 with connecting-tube nozzle 2, and the horn mouth of the bulb of spherical joint 1 and connecting-tube nozzle 2 pushes formation linear sealing mutually.The step of spherical joint 1 and the step of connecting-tube nozzle 2 contact sealing by carbon seal ring 4 at the radial and axial formation face that is squeezed simultaneously simultaneously.This seal form can obtain desirable sealing effect under normal temperature and high temperature.
This sealing configuration is simple in structure, and material technology is ripe, and to pipeline joint, sealing has extraordinary effect, if spherical joint seal failure when gas temperature raises, carbon seal ring still can realize sealing.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. for a black box for high temperature and high pressure gas pipeline joint, can realize the Butt sealing of two High Temperature High Pressure pipelines, it is characterized in that, sealing assembly comprises:
Spherical joint, it is hollow article, one end is bulb shape, which is provided with the convex shoulder for accommodating seal ring, the other end and wherein a High Temperature High Pressure pipeline connection;
Connecting-tube nozzle (2), it is hollow article, and end, one end periphery is provided with outside thread, and this end end face has the shrinkage pool coordinating with the bulb of described spherical joint, the other end and another High Temperature High Pressure pipeline connection;
Cap nut (3), it is hollow cylinder, and internal face is provided with internal thread, and its coaxial package is outside described spherical joint (1);
During Butt sealing, described in the bulb of described spherical joint embeds, connect in the shrinkage pool of mouth pipe (2) and clamp, make this bulb and mutually push formation linear sealing with shrinkage pool, and screw with the external thread spiro fastening that connects mouth pipe (2) by the internal thread of this cap nut (3), thereby achieve a butt joint sealing.
2. a kind of black box for high temperature and high pressure gas pipeline joint according to claim 1, it is characterized in that, on the convex shoulder of described bulb, be socketed with carbon seal ring (4), its when described bulb and shrinkage pool push mutually by this carbon seal ring (4) extruding, this bulb with shrinkage pool between by this carbon seal ring (4) formation face, contact sealing.
3. a kind of black box for high temperature and high pressure gas pipeline joint according to claim 1 and 2, is characterized in that, described shrinkage pool is the horn mouth that aperture inwardly reduces gradually, and described carbon seal ring (3) external diameter is larger than this horn mouth maximum inner diameter.
4. a kind of black box for high temperature and high pressure gas pipeline joint according to claim 1 and 2, it is characterized in that, the end face aperture, cylindrical shell one end of described cap nut (3) is less than the Probe-radius of described spherical joint (1), but be greater than the diameter with described High Temperature High Pressure pipeline connection end, thereby the pipeline connecting end that makes described spherical joint through after this end face with High Temperature High Pressure pipeline connection, and bulb end can promote to enter in described shrinkage pool by this end face under the screwing of this cap nut (3).
5. a kind of black box for high temperature and high pressure gas pipeline joint according to claim 1 and 2, is characterized in that, described spherical joint (1), connecting-tube nozzle (2) and cap nut (3) all adopt high-temperature titanium alloy manufacture.
6. a kind of black box for high temperature and high pressure gas pipeline joint according to claim 1 and 2, is characterized in that, described carbon seal ring (4) adopts Expanded graphite manufacture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320604435.8U CN203463833U (en) | 2013-09-27 | 2013-09-27 | Sealing assembly for butt-joint of high-temperature high-pressure gas pipelines |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320604435.8U CN203463833U (en) | 2013-09-27 | 2013-09-27 | Sealing assembly for butt-joint of high-temperature high-pressure gas pipelines |
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|---|---|
| CN203463833U true CN203463833U (en) | 2014-03-05 |
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|---|---|---|---|
| CN201320604435.8U Expired - Lifetime CN203463833U (en) | 2013-09-27 | 2013-09-27 | Sealing assembly for butt-joint of high-temperature high-pressure gas pipelines |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565626A (en) * | 2014-12-11 | 2015-04-29 | 中国北方发动机研究所(天津) | Auxiliary sealing structure for spherical joint |
| CN107289208A (en) * | 2017-06-07 | 2017-10-24 | 上海空间推进研究所 | Small-bore gas/fluid path pressure measurement adapter coupling |
| CN107605701A (en) * | 2017-07-25 | 2018-01-19 | 盐城美希密封件有限公司 | A kind of air conditioner refrigerating compressor seal part |
| CN108612935A (en) * | 2018-06-21 | 2018-10-02 | 江苏腾驰科技有限公司 | A kind of secondary sealer for automobile engine mesohigh pipeline |
| CN109114322A (en) * | 2018-09-28 | 2019-01-01 | 苏州丹顿机电有限公司 | A kind of pipe fitting |
| CN109141752A (en) * | 2018-07-04 | 2019-01-04 | 西安航天发动机有限公司 | It is a kind of for protecting surface treatment late gate to connect the air seal test attachment device of mouth |
| CN109424803A (en) * | 2017-08-31 | 2019-03-05 | 杭州三花研究院有限公司 | Pipe joint component and heat pump system |
| CN109654317A (en) * | 2018-08-22 | 2019-04-19 | 宁波乐惠国际工程装备股份有限公司 | A kind of bridging tube assembly |
| CN112459757A (en) * | 2020-12-31 | 2021-03-09 | 克拉玛依红山油田有限责任公司 | Detachable steam injection metering pry for thick oil thermal production well |
| CN113252339A (en) * | 2021-06-11 | 2021-08-13 | 四川航天长征装备制造有限公司 | Damping type mechanical simulation steering engine |
| CN113976062A (en) * | 2016-09-09 | 2022-01-28 | 株式会社日本光电科技 | Ultraviolet irradiation apparatus and method |
| WO2022100277A1 (en) * | 2020-11-11 | 2022-05-19 | 上海众源燃油分配器制造有限公司 | Sealing structure for pipeline connector of r744 air conditioner heat pump system |
| CN114776909A (en) * | 2022-04-24 | 2022-07-22 | 西京学院 | High-pressure-resistant quartz-metal pipeline sealing interface |
| CN117299382A (en) * | 2023-09-28 | 2023-12-29 | 北京天兵科技有限公司 | Nozzle assembly applied to medium flow control |
-
2013
- 2013-09-27 CN CN201320604435.8U patent/CN203463833U/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565626A (en) * | 2014-12-11 | 2015-04-29 | 中国北方发动机研究所(天津) | Auxiliary sealing structure for spherical joint |
| CN113976062B (en) * | 2016-09-09 | 2024-05-03 | 株式会社日本光电科技 | Ultraviolet irradiation device and method |
| CN113976062A (en) * | 2016-09-09 | 2022-01-28 | 株式会社日本光电科技 | Ultraviolet irradiation apparatus and method |
| CN107289208A (en) * | 2017-06-07 | 2017-10-24 | 上海空间推进研究所 | Small-bore gas/fluid path pressure measurement adapter coupling |
| CN107605701A (en) * | 2017-07-25 | 2018-01-19 | 盐城美希密封件有限公司 | A kind of air conditioner refrigerating compressor seal part |
| CN109424803A (en) * | 2017-08-31 | 2019-03-05 | 杭州三花研究院有限公司 | Pipe joint component and heat pump system |
| CN108612935A (en) * | 2018-06-21 | 2018-10-02 | 江苏腾驰科技有限公司 | A kind of secondary sealer for automobile engine mesohigh pipeline |
| CN109141752B (en) * | 2018-07-04 | 2021-01-12 | 西安航天发动机有限公司 | Air-tight test connecting device for protecting valve nozzle after surface treatment |
| CN109141752A (en) * | 2018-07-04 | 2019-01-04 | 西安航天发动机有限公司 | It is a kind of for protecting surface treatment late gate to connect the air seal test attachment device of mouth |
| CN109654317A (en) * | 2018-08-22 | 2019-04-19 | 宁波乐惠国际工程装备股份有限公司 | A kind of bridging tube assembly |
| CN109114322A (en) * | 2018-09-28 | 2019-01-01 | 苏州丹顿机电有限公司 | A kind of pipe fitting |
| WO2022100277A1 (en) * | 2020-11-11 | 2022-05-19 | 上海众源燃油分配器制造有限公司 | Sealing structure for pipeline connector of r744 air conditioner heat pump system |
| CN112459757A (en) * | 2020-12-31 | 2021-03-09 | 克拉玛依红山油田有限责任公司 | Detachable steam injection metering pry for thick oil thermal production well |
| CN113252339A (en) * | 2021-06-11 | 2021-08-13 | 四川航天长征装备制造有限公司 | Damping type mechanical simulation steering engine |
| CN113252339B (en) * | 2021-06-11 | 2021-10-01 | 四川航天长征装备制造有限公司 | Damping type mechanical simulation steering engine |
| CN114776909A (en) * | 2022-04-24 | 2022-07-22 | 西京学院 | High-pressure-resistant quartz-metal pipeline sealing interface |
| CN117299382A (en) * | 2023-09-28 | 2023-12-29 | 北京天兵科技有限公司 | Nozzle assembly applied to medium flow control |
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Granted publication date: 20140305 |