CN104235537A - Detachable pipe joint - Google Patents
Detachable pipe joint Download PDFInfo
- Publication number
- CN104235537A CN104235537A CN201410537597.3A CN201410537597A CN104235537A CN 104235537 A CN104235537 A CN 104235537A CN 201410537597 A CN201410537597 A CN 201410537597A CN 104235537 A CN104235537 A CN 104235537A
- Authority
- CN
- China
- Prior art keywords
- tube body
- sleeve
- flange
- blind flange
- clip
- 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.)
- Pending
Links
- 239000013013 elastic material Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000002699 waste material Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
- F16L23/028—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/04—Flanged joints the flanges being connected by members tensioned in the radial plane
- F16L23/08—Flanged joints the flanges being connected by members tensioned in the radial plane connection by tangentially arranged pin and nut
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The invention belongs to the field of pipe joints, and discloses a detachable pipe joint which comprises a pipe body, a flange cover and a sleeve. The center of one end face of the flange cover protrudes outwards, a through hole is formed in the axial direction of the protruding part, and threads are arranged on the inner wall of the sleeve; one end of the protruding part of the flange cover is connected with one end of the pipe body, a sealing ring is further arranged between the protruding part of the flange cover and the pipe body, the sleeve is arranged at the joint of the protruding part of the flange cover and the pipe body in a sleeved mode, the sleeve is connected with the protruding part of the flange cover in a threaded mode, and the sleeve is connected with the pipe body in a threaded mode; a hoop and a movable flange are further arranged on the outer wall of the pipe body in a sleeved mode; a locking bolt is arranged between the movable flange and the flange cover and penetrates through the movable flange and the flange cover. The safe detachable pipe joint which saves time, labor and materials when being used for installing a pressure meter aims to solve the technical problems that when a pressure experiment is carried out on a pipeline, operation is complex, time is wasted, materials are wasted and certain risks exist when an existing pipe joint is used for installing a pressure meter.
Description
Technical field
The invention belongs to pipe joint technical field, be specifically related to a kind of good seal performance, can the demountable tube joint of direct mounting gauge.
Background technique
When doing pressure test in factory, normally pressure gauge is connected on flange plate and tests, and when doing hydraulic pressure or pneumatic test to the heat exchanging tube after assembly welding, because pipe end all connects without flange plate usually, pressure gauge cannot directly be installed.Traditional way is the pipe being welded with same specification at pipe end place, and is welded with flange at the Guan Shangzai be welded with, thus on flange setting pressure table, carry out pressure test; After test terminates, the pipe excision that must will be welded with, and otch is polished, just pipeline can be come into operation again.The method needs welding before testing, and need cutting after test, also need otch to polish after cutting, complicated operation, loses time, and welding needs are got angry, and there is potential safety hazard; In addition, weld, cut, polish the loss that can cause material, cause waste.
Summary of the invention
The present invention is directed to heat exchange pipeline when doing pressure test, the complicated operation when pipe joint of existing Bonding pressure table is installed, lose time, waste material and there is the technological deficiency of potential safety hazard, saving of labor when a kind of installation be provided, save time, material-saving and the demountable tube joint of the Bonding pressure table of safety.
In order to solve the problems of the technologies described above, the invention provides following technological scheme: comprise tube body, also comprise blind flange and sleeve, blind flange one end face center outwardly convex, high spot is axially arranged with through hole, and sleeve lining is provided with screw thread; The end of blind flange convex portion is connected with the end of tube body, the through hole of blind flange high spot communicates with tube body, also seal ring is provided with between blind flange convex portion and tube body, jacket casing is located at the joint of blind flange convex portion and tube body, and sleeve and blind flange convex portion, sleeve are with tube body and are threaded; Described tube body outer wall is also arranged with clip and loose flange, and described clip is between sleeve and loose flange; The lock bolt through both is provided with between loose flange and blind flange.
Adopt the demountable tube joint of technical solution of the present invention, blind flange one end face center outwardly convex, blind flange high spot is axially arranged with through hole, and through hole is used for setting pressure table; Blind flange convex portion end is connected with tube body end, the through hole of blind flange high spot communicates with tube body, pressure gauge is installed on through hole, makes pressure size and the tube body internal pressure equal and opposite in direction at pressure gauge place, is convenient to the pressure with gauge measurement tube body inside; Seal ring is used for the interface between sealed pipe body and blind flange convex portion; Sleeve lining is provided with screw thread; sleeve and blind flange convex portion, sleeve are with tube body and are threaded; sleeve is located at the outer wall of blind flange convex portion and tube body by thread bush; seal ring can be protected; seal ring is avoided to be subject to the damage such as liquid corrosion in bad working environments; and sleeve and blind flange convex portion, being threaded of sleeve and tube body can make blind flange convex portion and tube body from two contrary direction press seal circles, thus strengthen the sealing of blind flange convex portion and tube body jointing.
Hoop sleeve is located at the outer wall of tube body, and by bolt by the locking of tube body radial direction, tube body forms a limited step, thus makes loose flange locate, not slide towards tube body port direction; The side of clip away from sleeve be close to by loose flange, and the lock bolt be also provided with between loose flange and blind flange through both, thus lock the connection of blind flange convex portion and tube body further, make blind flange convex portion, tube body larger to two of seal ring rightabout impacting forces, strengthen the sealing at blind flange convex portion and tube body interface place; In addition because blind flange and loose flange are to the further locking of blind flange and tube body, make to play with tube body blind flange be equally connected, the stressed reduction of internal thread of sleeve of locking effect, thus the outside thread of blind flange convex portion, tube body is stressed also reduces, avoid internal thread of sleeve, blind flange convex portion outside thread, tube body is externally threaded damages easily, improve the working life of screw thread.
The principle of technical solution of the present invention and technique effect are: blind flange convex portion, tube body are connected from contrary direction with bush whorl respectively, screw thread is threaded to seal ring closely to offset with blind flange convex portion, tube body respectively, blind flange convex portion, tube body is made to give a rightabout clamping force to seal ring respectively, because seal ring is flexible, therefore avoid after blind flange convex portion and tube body and seal ring compress and leave space, thus the effect of sealing is played to the jointing of blind flange convex portion and tube body; Sleeve and blind flange convex portion, sleeve are with tube body and are threaded, seal ring is positioned at the middle of blind flange convex portion and tube body, avoid seal ring and be exposed to the external world, thus avoid seal ring and be subject to the damage such as liquid corrosion in extraneous bad working environments; Tube body is locked by clip, thus be fixed on the outer wall of tube body, the side of clip away from sleeve be close to by loose flange, and pass through bolt-locking with blind flange, because clip position is fixed, make clip to loose flange have one opposing in the position-limiting action power in sleeve direction, thus it is opposing in the pulling force in sleeve direction to give the bolted blind flange one with loose flange, and then it is tighter to make blind flange convex portion and tube body fit, and reaches the further sealing to blind flange convex portion and tube body jointing; In addition, when equal sealing, blind flange convex portion is suffered certain towards the pulling force in tube body direction, because blind flange is subject to a pulling force of loose flange, namely blind flange convex portion is subject to a pulling force of loose flange, and bush whorl is reduced the pulling force of blind flange convex portion, and then active force suffered by screw thread reduces, thus avoid screw thread and be easily damaged, improve the working life of screw thread.Implement technical solution of the present invention time only need successively by loose flange, clip, jacket casing on tube body, successively seal ring is put into sleeve again, blind flange convex portion is screwed in sleeve, be tightened by bolts blind flange and loose flange, simple to operate, time saving and energy saving, and without the need to welding of getting angry in operating process, safety index is high; After finishing using, pipe joint can be dismantled according to contrary order, and after having dismantled, tube body can directly come into operation, without the need to passing through the operations such as processing; Component under dismounting directly can carry out secondary use, without the need to additional processing, and in whole installation and removal process, except normal friction, do not have extra material unaccounted-for (MUF), avoid waste of material.
Further, the through-hole wall of described blind flange high spot is provided with screw thread.If female through hole facilitates pressure gauge directly to install.
Further, described clip is elastic material clip, and clip inwall is provided with groove.The radial locking tube body of clip, give clip inwall an extruding force, because clip is elastic material clip, therefore along with the increase of extruding force, air in clip inboard wall groove is squeezed out gradually, clip inwall and clip outer wall is made to form a pressure difference, thus external atmosphere pressure is to the inside pressure of clip one, this pressure increase frictional force of clip and tube body outer wall, therefore more not easily there is relative sliding in clip and tube body outer wall, and then the limit effect of clip to loose flange is better.
Further, the internal diameter of described loose flange is larger than the external diameter of tube body.Thus in abandoned situation, loose flange can be free to slide on the outer wall of tube body, conveniently loose flange is enclosed within tube body.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is further illustrated:
Fig. 1 is the schematic diagram of technical solution of the present invention demountable tube joint;
Fig. 2 is the schematic cross-section in A-A cross section in Fig. 1.
Specific embodiment
As shown in Figure 1, demountable tube joint of the present invention, comprise tube body 5, also comprise sleeve 3 and blind flange 1, tube body 5 is vertically placed, tube body 5 external wall of upper portion has outside thread, sleeve 3 inwall has internal thread, four bolts hole are with outside blind flange 1, center, blind flange 1 lower end surface is to lower convexity, blind flange high spot axially has through hole 2, through hole 2 inwall has internal thread, blind flange convex portion side surface has outside thread, blind flange convex portion lower end is connected with tube body 5 upper end, sleeve 3 one end is enclosed within blind flange convex portion, the other end is enclosed within tube body 5, and sleeve 3 and blind flange convex portion, sleeve 3 is with tube body 5 and is threaded, seal ring 4 is also had between blind flange convex portion and tube body 5, seal ring 4 all closely offsets with blind flange convex portion lower end and tube body 5 upper end, for the interface of sealing flange cover convex portion and tube body 5, bottom place tube body 5 being positioned at sleeve 3 also has clip 6, clip 6 is elastic material clip, clip 6 comprises front clip and rear clip, ear corresponding to front clip and rear clip both sides is all tightened by bolts, thus clip 6 is fixed on the outer wall of tube body 5, the inwall of front clip and rear clip is provided with groove 8 all vertically, as shown in Figure 2, bottom place tube body 5 being positioned at clip 6 also has loose flange 7, loose flange 7 internal diameter 1mm larger than tube body 5 external diameter, to ensure that loose flange 7 can be free to slide on tube body 5 outer wall, the outer of loose flange 7 is with four bolts hole, and corresponding with the bolt hole on blind flange 1 respectively, blind flange 1 and loose flange 7 pass both bolt-lockings by four.
In specific implementation process, carry out successively according to following steps: first loose flange 7 to be enclosed within the vertical tube body placed 5; Again sleeve 3 is enclosed within tube body 5, and by sleeve 3 threadingly direction precession; When sleeve 3 screw thread precession one half, seal ring 4 is put into sleeve; After this blind flange 1 convex portion is threadingly screwed in sleeve 3 in direction, until the upper and lower end of seal ring 4 closely offsets with tube body 5 and blind flange 1 convex portion respectively, seal to make the upper end of tube body 5 and blind flange 1 convex portion lower end jointing; The front clip of clip 6 and rear hoop sleeve are located between sleeve 3 and loose flange 7 at tube body 5 outer wall, front clip and rear clip fasten, and lock with the place of clip ear of bolt in its correspondence, thus be fixed on tube body 5 outer wall by clip 6, and then the effect of location is played to the loose flange 7 below clip 6; Blind flange 1 is tightened by bolts by both peripheral corresponding bolts hole with loose flange 7; and then make blind flange 1 convex portion and tube body 5 lock sealing further; and reduce the stressed size of the screw thread on screw thread on sleeve 3, the screw thread of blind flange 1 convex portion, tube body 5, play the effect of protection screw thread.Pressure gauge is arranged on through hole 2 place on blind flange, pressure test can be done, simple to operate, after test terminates, dismantle pipe joint according to step contrary above, the component disassembled do not need additional processing to reuse, and tube body does not need extra processing to come into operation yet, save time, laborsaving, and do not waste material.
For a person skilled in the art, under the prerequisite not departing from structure of the present invention, can also make some distortion and improvement, these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.
Claims (4)
1. demountable tube joint, comprises tube body, it is characterized in that: also comprise blind flange and sleeve, blind flange one end face center outwardly convex, and high spot is axially arranged with through hole, and sleeve lining is provided with screw thread; The end of blind flange male portion is connected with the end of tube body, the through hole of blind flange high spot communicates with tube body, also seal ring is provided with between blind flange convex portion and tube body, jacket casing is located at the joint of blind flange convex portion and tube body, and sleeve and blind flange convex portion, sleeve are with tube body and are threaded; Described tube body outer wall is also arranged with clip and loose flange, and described clip is between sleeve and loose flange; The lock bolt through both is provided with between loose flange and blind flange.
2. demountable tube joint as claimed in claim 1, is characterized in that: the through-hole wall of described blind flange high spot is provided with screw thread.
3. demountable tube joint as claimed in claim 2, is characterized in that: described clip is elastic material clip, and clip inwall is provided with groove.
4. demountable tube joint as claimed in claim 3, is characterized in that: the internal diameter of described loose flange is larger than the external diameter of tube body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410537597.3A CN104235537A (en) | 2014-10-13 | 2014-10-13 | Detachable pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410537597.3A CN104235537A (en) | 2014-10-13 | 2014-10-13 | Detachable pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104235537A true CN104235537A (en) | 2014-12-24 |
Family
ID=52224170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410537597.3A Pending CN104235537A (en) | 2014-10-13 | 2014-10-13 | Detachable pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104235537A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623474A (en) * | 2021-07-05 | 2021-11-09 | 王锁成 | Convex surface flat welding flange |
| CN114378514A (en) * | 2021-12-30 | 2022-04-22 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Expansion adjustable positioning head assembly for aviation heat exchanger welding fixture |
-
2014
- 2014-10-13 CN CN201410537597.3A patent/CN104235537A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623474A (en) * | 2021-07-05 | 2021-11-09 | 王锁成 | Convex surface flat welding flange |
| CN113623474B (en) * | 2021-07-05 | 2023-08-22 | 定襄县昕坤法兰锻造有限公司 | Protruding surface flat welding flange |
| CN114378514A (en) * | 2021-12-30 | 2022-04-22 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Expansion adjustable positioning head assembly for aviation heat exchanger welding fixture |
| CN114378514B (en) * | 2021-12-30 | 2024-05-28 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Expansion adjustable positioning head assembly for welding fixture of aviation heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141224 |
|
| WD01 | Invention patent application deemed withdrawn after publication |