CN101440904B - Swivel joint special for chlorine liquid - Google Patents
Swivel joint special for chlorine liquid Download PDFInfo
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- CN101440904B CN101440904B CN2008102372408A CN200810237240A CN101440904B CN 101440904 B CN101440904 B CN 101440904B CN 2008102372408 A CN2008102372408 A CN 2008102372408A CN 200810237240 A CN200810237240 A CN 200810237240A CN 101440904 B CN101440904 B CN 101440904B
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- inner sleeve
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Abstract
The invention is a liquefied chlorine specialized swivel joint, which is butted by an inner sleeve and an outer sleeve; one end of the inner sleeve extends into the outer sleeve and a sealing mechanism is arranged in the circumferential clearance between the inner sleeve and the outer sleeve. A joint of the inner sleeve and the outer sleeve is sleeved with an exterior threaded sleeve which is sleeved on the inner sleeve by a thrust rolling bearing. Another threaded sleeve is sleeved on the outer sleeve. The exterior threaded sleeve and the sealing mechanism form a cavity. Via hole (b) is provided on the exterior threaded sleeve in the cavity section (a). A thrust force spring is provided on the inner sleeve in the cavity section (a). A seal ring is provided at the conjunction of the exterior threaded sleeve and the inner sleeve, the exterior threaded sleeve and the outer sleeve and the conjunction of the sealing mechanism and outer sleeve. The invention can prevent the leakage of the liquefied chlorine in the transportation and is safe and reliable.
Description
Technical field
The present invention relates to a kind of pipeline coupling head, especially a kind of sealing and rotatable swivel joint special for chlorine liquid that is used for the use of chemical industry chlor-alkali production process liquid chlorine conveyance conduit.
Background technique
Liquid chlorine is yellowish green oily liquids, and proportion is 1.4256 in the time of 15 ℃, as meets moisture content iron and steel is had strong corrosion, gaseous state is heavier than air, and character is active, combustion-supporting, when mixing with other inflammable gases in the sun combustion explosion can take place, severe toxicity is arranged, and the depots temperature is no more than 35 ℃.For making things convenient for accumulating, adopt liquid chlorine cylinder to store usually and transportation, liquid chlorine in the process that steel cylinder fills because the size disunity of steel cylinder inlet and outlet connectors, two (not having swivel) elongated carrying out of many at present employings around the property pipe.One is injected liquid chlorine, a chlorine of extracting out in the bottle.Because of diameter of conveying pipe is too little, can only finish filling to small capacity steel cylinder (1 ton of maximum capacity).Use large-scale vapour (fire) recessing car to transport liquid chlorine at present and become reality, filling weight once is from several tons to tens tons.In order to realize filling safely and fast, need to strengthen the latus rectum of conveyance conduit, the contraposition that thereupon fills pipeline and vehicle connection interface need can be rotated and move and the swivel and the connecting tube of reliable sealing are finished by special.And the used swivel of liquid chlorine oil filling riser in the market uses the swivel of can refined oil, as shown in Figure 5 more.The sealing of this swivel is relatively poor, easily leakage, and the structure of the common swivel that change tradition is used has just changed material into resistant material, is difficult to fundamentally solve the swivel of carrying liquid chlorine to use and requires a bit difficult problem that all can not leak.
Summary of the invention
Defectives such as the easy leakage of liquid chlorine for the swivel that overcomes traditional can refined oil exists the purpose of this invention is to provide a kind of swivel joint special for chlorine liquid, and this swivel joint special for chlorine liquid can reach the purpose that prevents that liquid chlorine from leaking.
For achieving the above object, technological scheme of the present invention is: adopt a kind of swivel joint special for chlorine liquid, the inner sleeve of this swivel joint special for chlorine liquid docks with outer sleeve, and described inner sleeve one end stretches in the outer sleeve, and in inner sleeve and the formed circular gap of outer sleeve sealing mechanism is housed; Connecting part at described inner sleeve and outer sleeve is set with external thread sleeve, and this external thread sleeve one end is sleeved on the inner sleeve by thrust rolling bearing, and the other end thread set is on outer sleeve; Described external thread sleeve and inner sleeve, outer sleeve and thrust pad interannular form the space, on the external thread sleeve of this space segment, have the inipple hole, on the inner sleeve of this space segment, be set with thrust spring, described thrust spring one end is against on the described sealing mechanism by the thrust gasket ring, and the other end is against on the step of inner sleeve by pad; Main points are: described thrust gasket ring is installed on the inner sleeve by flat key; In the cooperation place of described external thread sleeve and inner sleeve, external thread sleeve and outer sleeve, and the cooperation place of sealing mechanism and outer sleeve is provided with seal ring.
Described sealing mechanism is made up of compound seal conical ring, rotary packing ring, stationary seal ring, and sealing mechanism is limited between thrust gasket ring and the bearing housing; This thrust gasket ring is near the end of outer sleeve, and described bearing housing is solidly set in the outer sleeve, and the longitudinal section of this bearing housing is similar to
Shape, the axial right-hand part of this bearing housing is fastened on the step inwall of described outer sleeve, interference fit stationary seal ring in the formed space of left side and outer sleeve, to this stationary seal ring compound seal conical ring, rotary packing ring being installed successively from described thrust gasket ring, fits in the inclined-plane of this compound seal conical ring and the inclined-plane of rotary packing ring.
Described thrust rolling bearing is made up of steel ball, thrust rolling bearing cover outer ring and thrust rolling bearing cover inner ring, wherein steel ball is stuck between thrust rolling bearing cover outer ring and the thrust rolling bearing cover inner ring, and described thrust rolling bearing is by the spacing front portion at described external thread sleeve and cavity that inner sleeve encloses of thrust snap ring.
Sealing function of the present invention is such, by the mutual sealing surface of thrust spring compressing, makes its sealing under realizing dynamically of closely fitting.Stationary seal ring is contained in the outer sleeve, adopts interference fit or comes spline with clamp; Rotary packing ring is by thrust spring and the thrust gasket ring key connecting spline that is contained on the inner sleeve, the static sealing of stationary seal ring is guaranteed that by the O-ring seals that is installed on the bearing housing static sealing of rotary packing ring is guaranteed by the O-ring seals that is installed on this rotary packing ring.External thread sleeve in the structure is that an end is sleeved on the inner sleeve in addition, the other end is equipped with O-ring seals with the space that is threaded in an interlayer cover of formation on the outer sleeve and at the face that the is fitted to each other place at two ends, this space neither communicates with external environment condition in rotary course, do not communicate with the closed conduit of inside yet, on the barrel of external thread sleeve, have simultaneously a pipe screw joint hole, by locating external inertia tracheae, can charge into the inert medium of ability chlorine corrosion in the interlayer cover with pressure state a little more than the liquid chlorine discharge pressure in this inipple hole.Like this, in conveying, when liquid chlorine flows through swivel, do not had pressure difference, guaranteed that therefore drop does not leak in the liquid chlorine conveying on the two sides at swivel dynamic and static ring sealing place.
The present invention is applicable to the connection of toxicity gas, liquid delivery tube, has extremely strong sealability, and safety, reliable.
Description of drawings
Fig. 1 is a plan view of the present invention;
Fig. 2 is the A-A partial sectional view of Fig. 1;
Fig. 3 is the B-B partial sectional view among Fig. 1;
Fig. 4 is the C-C partial sectional view among Fig. 1;
Fig. 5 is the swivel schematic representation of can refined oil;
Fig. 6 is a user mode reference drawing of the present invention.
Meaning of each numbering is in the above-mentioned accompanying drawing: 1. inner sleeve, 2. first O-ring seals, 3. external thread sleeve, 4. thrust rolling bearing overlaps the outer ring, 5. steel ball, 6. thrust rolling bearing cover inner ring, 7. thrust snap ring, 8. thrust spring, 9. thrust gasket ring, 10. compound seal conical ring, 11. rotary packing ring, 12. stationary seal rings, 13. bearing housings, 14. outer sleeve, 15. second O-ring seals, 16. the 3rd O-ring seals, 17. pressing plates, 18. screw, 19. flat key, 20. pressure spring pads, 21. gas phase oil filling risers, 22. the liquid phase oil filling riser, 23. pressure hoses.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing.
By Fig. 1 to Fig. 4 as can be seen: swivel joint special for chlorine liquid is docked with outer sleeve 14 by inner sleeve 1, and wherein inner sleeve 1 one ends stretch in the outer sleeve 14, and (being in the peripheral space) is equipped with sealing mechanism in inner sleeve 1 and outer sleeve 14 formed circular gaps; The connecting part of inner sleeve 1 and outer sleeve 14 is set with external thread sleeve 3, and these external thread sleeve 3 one ends are sleeved on the inner sleeve 1 by thrust rolling bearing, and the other end thread set is on outer sleeve 14; External thread sleeve 3 and inner sleeve 1, outer sleeve 14 and 9 of thrust gasket rings form space a, on the external thread sleeve 3 of this space a section, have inipple hole b, on the inner sleeve 1 of this space a section, be set with thrust spring 8, thrust spring 8 one ends are against on the described sealing mechanism by thrust gasket ring 9, and the other end is against on the step of inner sleeve 1 by pad 20; Described thrust gasket ring 9 is installed on the inner sleeve 1 by flat key 19, and this thrust gasket ring 9 can only move axially, and can not rotate; The cooperation place of described external thread sleeve 3 and inner sleeve 1, external thread sleeve 3 and outer sleeve 14, and the cooperation place of sealing mechanism and outer sleeve 14 is provided with O-ring seals.Wherein adopt first O-ring seals 2 between inner sleeve 1 and the external thread sleeve 3, adopt the 3rd O-ring seals 16 between external thread sleeve 3 and the outer sleeve 14, adopt second O-ring seals 15 between outer sleeve 14 and rotary packing ring 11 and the bearing housing 13.
As shown in Figure 1: described sealing mechanism is made up of compound seal conical ring 10, rotary packing ring 11, stationary seal ring 12, and sealing mechanism is limited between thrust gasket ring 9 and the bearing housing 13; This thrust gasket ring 9 is near the end of outer sleeve 14, and described bearing housing 13 is solidly set in the outer sleeve 1, and the longitudinal section of this bearing housing 13 is similar to
Shape, these bearing housing 13 axial right-hand parts are fastened on the step inwall of described outer sleeve 14, interference fit stationary seal ring 12 in left side and the outer sleeve 14 formed spaces, to this stationary seal ring 12 compound seal conical ring 10, rotary packing ring 11 are installed successively from described thrust gasket ring 9, fit in the inclined-plane of the inclined-plane of this compound seal conical ring 10 and rotary packing ring 11, allowing has moving of trace between compound seal conical ring 10 and the rotary packing ring 11.
Also can see among Fig. 1: described thrust rolling bearing is made up of steel ball 5, thrust rolling bearing cover outer ring 4 and thrust rolling bearing cover inner ring 6, wherein steel ball 5 is stuck between thrust rolling bearing cover outer ring 4 and the thrust rolling bearing cover inner ring 6, and described thrust rolling bearing is spacing in the front portion of described external thread sleeve 3 with cavity that inner sleeve 1 encloses by thrust snap ring 7.
The present invention is designed to flange plate structure with the outer end of described inner sleeve 1 and outer sleeve 14, is convenient to connect pipe.
Please refer to Fig. 6, when the present invention uses, described inner sleeve 1 and outer sleeve 14 are connected to form a pair of independently gas phase oil filling riser 21 and liquid phase oil filling riser 22 separately with horizontal swan neck, 90 ° of swan necks and C shape arm pipe respectively, and liquid phase oil filling riser 22 bears malleation, is responsible for delivering liquid chlorine; Gas phase oil filling riser 21 bears negative pressure, is responsible for the suction gaseous chlorine.Wherein liquid phase oil filling riser 22 need be together in series each swivel joint special for chlorine liquid at inipple hole setting pressure sebific duct 23, and on the inipple hole of the swivel joint special for chlorine liquid on oil filling riser top, flexible pipe is installed, can carry out the filling of the inert medium of anti-chlorine corrosion to special-purpose liquid chlorine swivel like this, fundamentally prevented liquid chlorine to external leakage.Adopt the connection of the present invention, can guarantee that drop does not leak in the liquid chlorine conveying, can strengthen the diameter of conveyance conduit again, improve the speed that fills as liquid chlorine conveyance conduit in the chemical industry chlor-alkali production process.
Claims (3)
1. swivel joint special for chlorine liquid, inner sleeve (1) docks with outer sleeve (14), and described inner sleeve (1) one end stretches in the outer sleeve (14), and in inner sleeve (1) and the formed circular gap of outer sleeve (14) sealing mechanism is housed; Connecting part at described inner sleeve (1) and outer sleeve (14) is set with external thread sleeve (3), and these external thread sleeve (3) one ends are sleeved on the inner sleeve (1) by thrust rolling bearing, and the other end thread set is on outer sleeve (14); Form space (a) between described external thread sleeve (3) and inner sleeve (1), outer sleeve (14) and thrust gasket ring (9), on the external thread sleeve (3) of this space (a) section, have inipple hole (b), on the inner sleeve (1) of this space (a) section, be set with thrust spring (8), described thrust spring (8) one ends are against on the described sealing mechanism by thrust gasket ring (9), and the other end is against on the step of inner sleeve (1) by pad (20); It is characterized in that: described thrust gasket ring (9) is installed on the inner sleeve (1) by flat key (19); In the cooperation place of described external thread sleeve (3) with inner sleeve (1), external thread sleeve (3) and outer sleeve (14), and the cooperation place of sealing mechanism and outer sleeve (14) is provided with seal ring.
2. swivel joint special for chlorine liquid according to claim 1, it is characterized in that: described sealing mechanism is made up of compound seal conical ring (10), rotary packing ring (11), stationary seal ring (12), and sealing mechanism is limited between thrust gasket ring (9) and the bearing housing (13); This thrust gasket ring (9) is near the end of outer sleeve (14), and described bearing housing (13) is solidly set in the outer sleeve (1), and the longitudinal section of this bearing housing (13) is similar to
Shape, the axial right-hand part of this bearing housing (13) is fastened on the step inwall of described outer sleeve (14), interference fit stationary seal ring (12) in the formed space of left side and outer sleeve (14), to compound seal conical ring (10), rotary packing ring (11) are installed this stationary seal ring (12) successively, fit in the inclined-plane of the inclined-plane of this compound seal conical ring (10) and rotary packing ring (11) from described thrust gasket ring (9).
3. swivel joint special for chlorine liquid according to claim 1, it is characterized in that: described thrust rolling bearing is made up of steel ball (5), thrust rolling bearing cover outer ring (4) and thrust rolling bearing cover inner ring (6), wherein steel ball (5) is stuck between thrust rolling bearing cover outer ring (4) and the thrust rolling bearing cover inner ring (6), and described thrust rolling bearing is by the spacing front portion of being enclosed cavity at described external thread sleeve (3) and inner sleeve (1) of thrust snap ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102372408A CN101440904B (en) | 2008-12-25 | 2008-12-25 | Swivel joint special for chlorine liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102372408A CN101440904B (en) | 2008-12-25 | 2008-12-25 | Swivel joint special for chlorine liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101440904A CN101440904A (en) | 2009-05-27 |
| CN101440904B true CN101440904B (en) | 2010-10-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102372408A Active CN101440904B (en) | 2008-12-25 | 2008-12-25 | Swivel joint special for chlorine liquid |
Country Status (1)
| Country | Link |
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| CN (1) | CN101440904B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102466102B (en) * | 2010-11-15 | 2014-08-13 | 陈墅庚 | Corrosion-resistant rotary displacement adjuster for pipelines |
| CN102661462B (en) * | 2012-05-11 | 2014-07-30 | 芜湖瑞精机床有限责任公司 | High-speed rotary joint |
| CN112797214B (en) * | 2021-04-06 | 2022-11-11 | 凯瑞特阀业有限公司 | Oil exploitation governing valve |
| CN113643600B (en) * | 2021-07-20 | 2023-05-30 | 中国人民解放军总医院第一医学中心 | Sealed and pressure-controllable pig stomach fixator |
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2008
- 2008-12-25 CN CN2008102372408A patent/CN101440904B/en active Active
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| Publication number | Publication date |
|---|---|
| CN101440904A (en) | 2009-05-27 |
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