CN203273168U - Low flow resistance balanced type expansion joint with compact appearance - Google Patents
Low flow resistance balanced type expansion joint with compact appearance Download PDFInfo
- Publication number
- CN203273168U CN203273168U CN 201320125163 CN201320125163U CN203273168U CN 203273168 U CN203273168 U CN 203273168U CN 201320125163 CN201320125163 CN 201320125163 CN 201320125163 U CN201320125163 U CN 201320125163U CN 203273168 U CN203273168 U CN 203273168U
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- China
- Prior art keywords
- expansion joint
- flow resistance
- bellows
- low flow
- shrouding
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- 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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Abstract
The utility model discloses a low flow resistance balanced type expansion joint with a compact appearance; and the low flow resistance balanced type expansion joint with the compact appearance is specially researched and developed aiming at the special requirements such as high pressure, high flow rate, large axial displacement, compact appearance, system pressure drop control demand and the like of a process pipeline of a special chemical device. Load bearing barriers with double functions of load bearing and flow guide is developed, and a diversion outer cover has the function of reducing resistance, so that the expansion joint has lower flow resistance; the external diameter of a corrugated pipe which bears external pressure is designed to be the same as that of the pipeline, and the external diameter of a pipe orifice at the inlet end is the same as that of the pipeline by an expanding pipe, so that the expansion joint is compact in appearance; and the corrugated pipe which bears external pressure is adopted and is combined with the guide function of the middle load bearing barriers and an outer pipe, so that the expansion joint can adsorb large axial displacement and does not lose stability.
Description
Technical field
The utility model relates to a kind of chemical plant installations process pipe, specifically a kind of expansion joint.
Background technique
The technique of chemical plant installations process pipe and design condition are comparatively harsh, and design pressure is higher, and flow velocity is higher, needs expansion joint to absorb larger axial displacement on long straight pipeline, and pipe diameter is requirement expansion joint compact appearance and need control system Pressure Drop during than Datong District.Usually must absorb axial displacement by the selection pressure balanced expansion joint in the case, and the pressure balanced expansion joint of existing absorption axial displacement exists profile large, flow resistance is high, and existence and stability problem etc. when absorbing large displacement, prior art not yet have and satisfy simultaneously the above expansion joint that requires.
Summary of the invention
The purpose of this utility model is exactly for above-mentioned the deficiencies in the prior art, and a kind of balanced expansion joint of the low-resistance compact profile of good stability when absorbing large displacement is provided.
The technical solution adopted in the utility model is as follows:
a kind of balanced expansion joint of low flow resistance compact profile, it is characterized in that it comprises the reducing adapter, the outer side wall that reducing is taken over is provided with nipple, left ring flat-plate is installed on the nipple outer side wall, left ring flat-plate is connected with outer tube one end, the outer tube the other end is connected to right ring flat-plate, described right ring flat-plate is arranged on right-hand member and takes over outer wall, described reducing is taken over the middle part nipple also is installed on outer wall, be connected by left bellows between described nipple and middle part nipple, described reducing adapter and right-hand member are provided with left shrouding and right shrouding between taking over, described reducing take over left shrouding between be connected by centre entrance place barrier, be connected by right bellows between left shrouding and right shrouding, water conservancy diversion outer cover one end and right bellows left end are fixed, the water conservancy diversion outer cover is positioned at outside right bellows, described right shrouding and right-hand member are connected by outlet port, end barrier between taking over.
Described centre entrance place barrier is the cross layout by two boards and forms.
Outlet port, described end barrier is the cross layout by two boards and forms.
Described centre entrance place barrier is spent three groups of uniform compositions by three blocks of plates by 60.
Outlet port, described end barrier is spent three groups of uniform compositions by three blocks of plates by 60.
Described left bellows and right bellows combine by two bellowss and indirect connecting leg.
Described left bellows and right bellows are connected with two intermediate connection tube intervals by three bellowss and constitute.
The beneficial effects of the utility model have:
Under normal operating state expansion joint without abnormal distortion, media flow steadily, can absorb larger axial displacement and flow resistance less.Load barrier with dual functions of load and water conservancy diversion adds the drag reduction effect of water conservancy diversion outer cover, makes expansion joint have lower flow resistance; Be designed to by the external diameter of the bellows of external pressure identical with outer diameter tube, the entry end mouth of pipe reaches identical with outer diameter tube by expander, the expansion joint compact appearance; The combined bellows that external pressure is born in employing adds the leading role of middle part load barrier and outer tube, the large axially displacement of the energy-conservation absorption of expanding and unstability does not occur can be satisfied high pressure, high flow rate, the large axially requirement of the chemical plant installations process pipe full and down long period safe operation of displacement fully.
The utility model is provided with at expansion joint centre entrance place and outlet port, end the dual functions that is the cross layout or plays load and water conservancy diversion by three groups of uniform load barriers of 60 degree, make expansion joint be difficult for producing vibration under the medium high speed, reduce to greatest extent because medium changes turbulent flow and the consequent flow resistance that flow direction causes; In the bellows outer installment at expansion joint centre entrance rear portion the water conservancy diversion outer cover, make the flow resistance of expansion joint reduce to minimum.
The utility model reaches pressure balanced effect by two groups of bellowss that bear external pressure are set, the expansion joint compact appearance of the utility model development, and maximum profile is without vary in diameter.
The utility model is by one group of bellows pressurized, another group bellows tension reaches the purpose that absorbs axial displacement, the expansion joint of the utility model development can absorb according to 1 bellows of different axial displacement relative set, 2 combined bellows or 3 combined bellows, and the axial displacement that the energy-conservation absorption of this expansion is larger and expansion joint do not produce unstable phenomenon.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is one of structural representation of centre entrance of the present utility model place barrier.
Fig. 3 be centre entrance of the present utility model place barrier structural representation two.
Fig. 4 is one of structural representation of left bellows of the present utility model (or right bellows).
Fig. 5 be left bellows of the present utility model (or right bellows) structural representation two.
Embodiment
The utility model is further described below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model it comprise that reducing takes over 1, the compositions such as nipple 2, left ring flat-plate 3, left bellows 4, centre entrance place barrier 5, outer tube 6, right bellows 7, outlet port, end barrier 8, right ring flat-plate 9, right-hand member take over 10, water conservancy diversion outer cover 11, middle part nipple 12, left shrouding 13, right shrouding 14, except centre entrance place barrier 5, outlet port, end barrier 8, above each constituent element is the circular rotating body.
Concrete structure is: the outer side wall of reducing adapter 1 is provided with nipple 2, and left ring flat-plate 3 is installed on nipple 2 outer side walls, and left ring flat-plate 3 is connected with outer tube 6 one ends, and outer tube 6 the other ends are connected to right ring flat-plate 9, and right ring flat-plate 9 is arranged on right-hand member and takes over 10 outer walls.Described reducing is taken over middle part nipple 12 also is installed on 1 outer wall, is connected by left bellows 4 between described nipple 2 and middle part nipple 12.Reducing adapter 1 and right-hand member are provided with left shrouding 13 and right shrouding 14 between taking over 10, described reducing take over 1 with left shrouding 13 between be connected by centre entrance place barrier 5, be connected by right bellows 7 between left shrouding 13 and right shrouding 14, water conservancy diversion outer cover 11 1 ends and right bellows 7 left ends are fixed, and water conservancy diversion outer cover 11 is positioned at right bellows 7 outsides.Described right shrouding 14 and right-hand member are connected by outlet port, end barrier 8 between taking over 10.Reducing is taken over 1 right-hand member by middle nipple 12 and left bellows 4 and is connected into integral body.The left end of left bellows 4 is connected with nipple 2, and nipple 2 is connected and forms a whole by outer tube 6 and right ring flat-plate 9, right-hand member adapter 10 with left ring flat-plate 3; The left end of right bellows 7 is connected with left shrouding 13, and the right-hand member of right bellows 7 is connected with right shrouding 14, jointly forms a closure.Water conservancy diversion outer cover 11 is connected with left shrouding 13, is fixed on the left end of right bellows 7.
As shown in Figure 2, the utility model centre entrance place barrier 5 is cross by two Special- shaped Plates 15,16 to be arranged and forms, and outlet port, end barrier 8 also was cross by two boards and arranged and form this moment.
As shown in Figure 3, the utility model centre entrance place barrier 5 also can be by three Special- shaped Plates 17,18,19 by three groups of uniform compositions of 60 degree, this moment outlet port, end barrier 8 by three blocks of plates by three groups of uniform compositions of 60 degree.
As shown in Figure 4, the left bellows 4 of the utility model and right bellows 7 by two bellowss 20,22 and indirect connecting leg 21 combine.Above each constituent element is the circular rotating body.
As shown in Figure 5, the left bellows 4 of the utility model also can be connected and constitute with two intermediate connection tubes 24,26 intervals by three bellowss 23,25,27 with right bellows 7.Above each constituent element is the circular rotating body.
Other undeclared part that the utility model relates to is same as the prior art.
Claims (7)
1. the balanced expansion joint of a low flow resistance compact profile, it is characterized in that it comprises reducing adapter (1), the outer side wall that reducing is taken over (1) is provided with nipple (2), on nipple (2) outer side wall, left ring flat-plate (3) is installed, left ring flat-plate (3) is connected with outer tube (6) one ends, outer tube (6) the other end is connected to right ring flat-plate (9), described right ring flat-plate (9) is arranged on right-hand member and takes over (10) outer wall, described reducing is taken over middle part nipple (12) also is installed on (1) outer wall, be connected by left bellows (4) between described nipple (2) and middle part nipple (12), described reducing is taken between (1) and right-hand member adapter (10) and is provided with left shrouding (13) and right shrouding (14), described reducing is taken between (1) and left shrouding (13) and is connected by centre entrance place's barrier (5), be connected by right bellows (7) between left shrouding (13) and right shrouding (14), water conservancy diversion outer cover (11) one ends and right bellows (7) left end are fixed, water conservancy diversion outer cover (11) is positioned at outside right bellows (7), described right shrouding (14) is taken between (10) with right-hand member and is connected by outlet port, end barrier (8).
2. the balanced expansion joint of low flow resistance compact profile according to claim 1, is characterized in that described centre entrance place's barrier (5) is the cross layout by two boards and forms.
3. the balanced expansion joint of low flow resistance compact profile according to claim 2, is characterized in that outlet port, described end barrier (8) is the cross layout by two boards and forms.
4. the balanced expansion joint of low flow resistance compact profile according to claim 1, it is characterized in that described centre entrance place's barrier (5) by three blocks of plates by three groups of uniform compositions of 60 degree.
5. the balanced expansion joint of low flow resistance compact profile according to claim 2, it is characterized in that outlet port, described end barrier (8) by three blocks of plates by three groups of uniform compositions of 60 degree.
6. the balanced expansion joint of low flow resistance compact profile according to claim 1, is characterized in that described left bellows (4) and right bellows (7) combine by two bellowss and indirect connecting leg.
7. the balanced expansion joint of low flow resistance compact profile according to claim 1 is characterized in that described left bellows (4) and right bellows (7) are connected with two intermediate connection tube intervals by three bellowss to constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125163 CN203273168U (en) | 2013-03-19 | 2013-03-19 | Low flow resistance balanced type expansion joint with compact appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125163 CN203273168U (en) | 2013-03-19 | 2013-03-19 | Low flow resistance balanced type expansion joint with compact appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203273168U true CN203273168U (en) | 2013-11-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320125163 Expired - Fee Related CN203273168U (en) | 2013-03-19 | 2013-03-19 | Low flow resistance balanced type expansion joint with compact appearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203273168U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174904A (en) * | 2013-03-19 | 2013-06-26 | 南京晨光东螺波纹管有限公司 | Balance type expansion joint of low flow resistance compact shape |
-
2013
- 2013-03-19 CN CN 201320125163 patent/CN203273168U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174904A (en) * | 2013-03-19 | 2013-06-26 | 南京晨光东螺波纹管有限公司 | Balance type expansion joint of low flow resistance compact shape |
| CN103174904B (en) * | 2013-03-19 | 2015-01-21 | 南京晨光东螺波纹管有限公司 | Balance type expansion joint of low flow resistance compact shape |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20131106 Termination date: 20150319 |
|
| EXPY | Termination of patent right or utility model |