CN203375075U - Double-layer water-cooled expansion joint - Google Patents
Double-layer water-cooled expansion joint Download PDFInfo
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- CN203375075U CN203375075U CN201320395736.4U CN201320395736U CN203375075U CN 203375075 U CN203375075 U CN 203375075U CN 201320395736 U CN201320395736 U CN 201320395736U CN 203375075 U CN203375075 U CN 203375075U
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- expansion joint
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Abstract
The utility model discloses a double-layer water-cooled expansion joint which comprises a corrugated pipe, a guide cylinder, a first flange, a second flange, a first water inlet and outlet device and a second water inlet and outlet device, wherein the two ends of the corrugated pipe are fixedly connected with the first flange and the second flange respectively, the guide cylinder is fixedly sleeved with the corrugated pipe, cavities are formed in the pipe wall of the corrugated pipe and the barrel wall of the guide cylinder, two inner cavities are formed in the first flange, one inner cavity is formed in the second flange, one inner cavity of the first flange is communicated with the inner cavity of the second flange through the cavity of the corrugated pipe, the other inner cavity of the first flange is communicated with the cavity of the guide cylinder, the first water inlet and outlet device, the fist flange, the corrugated pipe and the second flange are connected and then form a first cooling system, and the second water inlet and outlet device, the first flange and the guide cylinder are connected and then form a second cooling system. According to the double-layer water-cooled expansion joint, the temperature of the expansion joint in a high-temperature condition can be reduced quickly, the effects that the expansion joint runs stably and is deformed are ensured, the safety of the expansion joint is improved, and the service lift of the expansion joint is prolonged.
Description
Technical field
The utility model relates to a kind of expansion joint, relates in particular to a kind of Double water-cooled expansion joint, mainly is applicable to the Compensation Regulation of pipeline generation axial displacement under high-temperature situation.
Background technique
At present, conventional expansion joint is mainly used in the Compensation Regulation of pipeline pipeline generation axial displacement when expanding with heat and contract with cold, and belongs to a kind of compensating element, thereby is widely used in all trades and professions.But when the high temperature media of some temperature over 800 ℃ passes through expansion joint, without cooling system, this just causes the temperature of expansion joint higher due to conventional expansion joint, easily is out of shape, thereby affect stability and the job security of whole pipeline configuration when working.
In order to address the above problem, following technology has been proposed in technology now:
As China Patent No. " 201220331857.8 " discloses thermal insulation high pressure-temperature expansion joint in a kind of outer water-cooled, its open day is on 01 30th, 2013, its technological scheme is that the bellows two ends are connected with two pressure-bearing ring flat-plates respectively, two pressure-bearing ring flat-plates are arranged on respectively the outer side wall of two adapters, the outboard end of two adapters all is connected with each self-corresponding flange, between pressure-bearing ring flat-plate and flange, be provided with in taking over the water jacket in the outside, the inner end of described two adapters is connected with two inside lining sleeves that the part cylindrical shell is staggered, the inside lining sleeve outer side wall is provided with containing zirconium tapetum fibrosum assembly, the inboard gap location of the waveform of described bellows is filled with containing the zirconium cellucotton.
But the prior art that the above-mentioned patent document of take is representative, in actual use, still exist following defect: one, this expansion joint only arranges water jacket at the outer surface of taking over, and be provided with the round steel to the water jacket radial location between adapter and water jacket, there is certain interval between chuck and adapter, when high temperature media passes through expansion joint, the cooling effect of cooling water butt tube is poor, takes over still easily distortion; Two, because water jacket is arranged between flange and pressure-bearing ring flat-plate, the interior also no-cooling-water of flange passes through, so water jacket is poor to the cooling effect of flange, when high temperature media passes through expansion joint, flange and pipeline junction easily are out of shape, and easily affect the sealing between expansion joint and pipeline; Three, the gap between two adapters, not only hinder high temperature media and pass through smoothly, also reduced the bearing capacity of expansion joint; Four, the complex structure of this expansion joint, exist manufacture cost height and the high shortcoming of maintenance cost; Five, when this expansion joint is regulated the compensation of pipeline that axial displacement occurs, set is easily loosening containing the zirconium cellucotton, causes its high temperature resistant and corrosion resistant effect poor; Six, be arranged between bellows and inside lining sleeve containing the zirconium fiber cotton, mainly play the thermal insulation heat-blocking action, but can not take away the heat of high temperature media, exist the poor shortcoming of cooling-down effect.
And for example China Patent No. " 201220668043.3 " discloses a kind of water power plant anti-sand bellow expansion joint, its open day is on 05 22nd, 2013, its technological scheme is that described expansion joint comprises bellows and guide shell, bellows is nested with on guide shell, one end of described bellows is fixedly connected with the upstream steel pipe, the other end of bellows is fixedly connected with the downstream steel pipe, and an end of described guide shell is fixedly connected with the upstream steel pipe, between guide shell and bellows, elastic filler is set.In this patent, due in expansion joint without cooling unit, in the pipeline of the high temperature media that therefore is not suitable for circulating, though by this used for expansion joint in the pipeline of circulation high temperature media, expansion joint is easy deformed damaged also, and security incident easily occurs when work.
The model utility content
The purpose of this utility model is to solve the above-mentioned problems in the prior art, a kind of Double water-cooled expansion joint is provided, the utility model can the fast reducing high-temperature situation under the temperature of expansion joint, avoid guide shell to be burnt by high temperature media, guarantee that expansion joint stable operation is indeformable, the Security of expansion joint not only can be improved, the working life of expansion joint can also be improved.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of Double water-cooled expansion joint, comprise bellows, guide shell, the first flange and the second flange, the two ends of bellows are fixedly connected with the second flange with the first flange respectively, the guide shell fixed cover is located in bellows, it is characterized in that: also comprise the first water inlet and outlet device and the second water inlet and outlet device, be provided with cavity in described bellows tube wall and guide shell barrel, be provided with two inner chambers in described the first flange, be provided with an inner chamber in the second flange, one of them inner chamber of the first flange is communicated with the inner chamber of the second flange by the cavity of bellows, another inner chamber of the first flange is communicated with the cavity of guide shell, described the first water inlet and outlet device, the first flange, after being connected with the second flange, bellows forms the first cooling system, described the second water inlet and outlet device, after being connected with guide shell, the first flange forms the second cooling system.
Described the first water inlet and outlet device comprises diversion endless tube, water intake, water outlet and connecting tube, and described water intake and water outlet all are arranged on the diversion endless tube, and described diversion endless tube is set on bellows, and is communicated with the flange inner chamber by connecting tube.
The quantity of described diversion endless tube is two, wherein a diversion endless tube is connected with the first flange inner chamber by connecting tube, another root diversion endless tube is communicated with the second flange inner chamber by connecting tube, described water intake and water outlet are separately positioned on two diversion endless tubes, and the water intake on two diversion endless tubes and water outlet dislocation are symmetrical arranged.
Described the second water inlet and outlet device comprises diversion endless tube, water intake, water outlet and a connecting tube, and described water intake and water outlet are symmetricly set on the diversion endless tube, and described diversion endless tube is set on bellows, and is communicated with the first flange inner chamber by connecting tube.
The quantity of the connecting tube between described every diversion endless tube and flange is 12-16.
In described diversion endless tube, be provided with for cutting off the closure plate of diversion endless tube cavity.
Be provided with male and female flange on described water intake and water outlet.
Described the first flange and the second flange are male and female flange.
The length of described guide shell is less than the length of bellows, and a wherein end and first flange of guide shell are welded to connect.
Be provided with otic placode on the edge of described the first flange, be provided with corresponding otic placode on the edge of described the second flange, the first flange is connected with bolt by otic placode with the second flange.
The otic placode of described the first flange is four, evenly is arranged on the first flange periphery surrounding; Accordingly, the otic placode of described the second flange is four, evenly is arranged on the second flange periphery surrounding.
Employing the utility model has the advantage of:
One, the utility model is provided with two independently cooling systems, cooling water in two cooling systems is separately positioned on high temperature media by the guide shell barrel of direction and in the bellows tube wall, and be provided with the inner chamber that Cooling Water passes through in the first flange and the second flange, therefore when high temperature media passes through expansion joint, two cooling systems can the fast reducing high temperature media temperature, make whole expansion joint do not burnt by high temperature, guarantee expansion joint when pipeline is played to Compensation Regulation without abnormal distortion, not only can improve the Security of expansion joint, can also improve the working life of expansion joint, and the guide shell of employing tubular structure, its flow-passing surface is smooth, not only makes the bearing capacity of guide shell can reach 15-18Kg/cm2, can also obviously reduce guide shell to adjusting stopping of air-flow, in guide shell barrel and bellows tube wall, the cooling water cavity is set, can accelerates to lead the flowing velocity of cooling water, significantly improve cooling-down effect, due to the effect of cooling water, the temperature of whole expansion joint is lower again, even expansion joint is damaged, also can change by rapid-maintenance, to manufacturing efficiency, can not impact, with China Patent No. " 201220331857.8 ", for the prior art of representative, compare, the independent water cooling system of two covers that the utility model arranges, not only have advantages of that film-cooled heat is large and cooling effectiveness is high, also have simple in structure, technique advanced person, cheap for manufacturing cost, the advantage of flexibility and reliability when compensation of pipeline is regulated.
Two, in the utility model, by diversion endless tube and connecting tube, make cooling water to be filled to rapidly, equably in two large size cooling systems, be conducive to improve the cooling effect to high temperature media.
Three, in the utility model, two diversion endless tubes that arrange in the first water inlet and outlet device, and water intake and water outlet are separately positioned on to two structures on the diversion endless tube, can guarantee that cooling water flows in fully at cooling water passage, further improves cooling effect.
Four, in the utility model, if the quantity of the connecting tube between every diversion endless tube and flange is less than 12, the amount of flow of cooling water will be reduced, cause cooling effect poor, if, and the quantity of the connecting tube between every diversion endless tube and flange is greater than 16, will improve again the manufacture cost of expansion joint, therefore the quantity of the connecting tube between every diversion endless tube and flange is set to 12-16, neither can increase manufacture cost, guarantee again cooling effect preferably.
Five, in the utility model, be provided for cutting off the closure plate of diversion endless tube cavity in described diversion endless tube, make cooling water to enter fast in the cavity of guide shell and bellows along connecting tube, thereby guarantee that cooling water can flow fully in cooling system, is conducive to improve the cooling-down effect of expansion joint.
Six, in the utility model, the flange arranged on described water intake and water outlet is male and female flange, described the first flange and the second flange all are set to male and female flange, and such structure not only is convenient to expansion joint and is connected with pipeline with water source, also makes the better tightness of joint.
Seven, in the utility model, the length of described guide shell is less than the length of bellows, and a wherein end and first flange of guide shell be welded to connect, and when this structure can be avoided bellows generation axial displacement, guide shell causes interference to expansion joint.
Eight, in the utility model, four otic placodes are set on the edge of described the first flange, corresponding otic placode is set on the edge of described the second flange, the first flange is connected with bolt by otic placode with the second flange, this set-up mode is conducive to the Installation and Debugging of expansion joint, also be convenient to regulate at any time according to actual service condition the length of expansion joint, use more flexible.
The accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is right TV structure schematic diagram of the present utility model.
In figure, be labeled as: 1, bellows, 2, guide shell, the 3, first flange, the 4, second flange, 5, cavity, 6, inner chamber, 7, water outlet, 8, water intake, 9, the diversion endless tube, 10, connecting tube, 11, closure plate, 12, male and female flange.
Embodiment
Embodiment 1
A kind of Double water-cooled expansion joint, comprise bellows 1, guide shell 2, the first flange 3 and the second flange 4, the two ends of bellows 1 are fixedly connected with the second flange 4 with the first flange 3 respectively, guide shell 2 fixed covers are located in bellows 1, also comprise the first water inlet and outlet device and the second water inlet and outlet device, be provided with cavity 5 in described bellows 1 tube wall and guide shell 2 barrels, be provided with two inner chambers 6 in described the first flange 3, be provided with an inner chamber 6 in the second flange 4, one of them inner chamber 6 of the first flange 3 is communicated with the inner chamber 6 of the second flange 4 by the cavity 5 of bellows 1, another inner chamber 6 of the first flange 3 is communicated with the cavity 5 of guide shell 2, described the first water inlet and outlet device, the first flange 3, after being connected with the second flange 4, bellows 1 forms the first cooling system, described the second water inlet and outlet device, after being connected with guide shell 2, the first flange 3 forms the second cooling system.Wherein, described the first water inlet and outlet device comprises diversion endless tube 9, water intake 8, water outlet 7 and connecting tube 10, described water intake 8 and water outlet 7 all are arranged on diversion endless tube 9, and described diversion endless tube 9 is set on bellows 1, and are communicated with flange inner chamber 6 by connecting tube 10.
In the present embodiment, the quantity of described diversion endless tube 9 preferably is set to two, and wherein a diversion endless tube 9 is connected with the first flange 3 inner chambers 6 by connecting tube 10, and another root diversion endless tube 9 is communicated with one of them inner chamber 6 of the second flange 4 by connecting tube 10; Further, described water intake 8 and water outlet 7 are separately positioned on two diversion endless tubes 9, and the water intake 8 on two diversion endless tubes 9 and water outlet 7 dislocation are symmetrical arranged.During installation, preferably water intake 8 is arranged on the expansion joint below, and water outlet 7 is arranged on the expansion joint top, and like this, cooling water can fully pass through cooling system, improves cooling effect.
In the present embodiment, for admission velocity and the time of improving cooling water, the quantity of the connecting tube 10 between described every diversion endless tube 9 and flange is preferably 14.
In the present embodiment, preferably in described diversion endless tube 9, be provided for cutting off the closure plate 11 of diversion endless tube 9 cavitys, closure plate 11 can increase the pressure of diversion endless tube 9 interior cooling waters, makes cooling water fully to enter in cooling system.
In the present embodiment, preferably described water intake 8 be fixedly connected with male and fomale(M&F) butt welding steel flanges on water outlet 7, by the connection of male and female flange 12, guarantee the better tightness of joint, further, the seal ring that strengthens sealing can also be set on male and female flange 12.
In the present embodiment, described the first flange 3 and the second flange 4 preferably adopt male and female flange 12 structures, and preferably adopt the 1Cr17Ni9Ti material to make.
In the present embodiment, the length of described guide shell 2 preferably is less than the length of bellows 1, and preferably medium inlet end and first flange 3 of guide shell 2 are welded to connect.
In the present embodiment, preferred forms is, in the edge surrounding of described the first flange 3, four otic placodes evenly is set, and at the edge of described the second flange 4, the surrounding correspondence arranges four otic placodes, and the first flange 3 is connected with bolt by otic placode with the second flange 4; But, in order further to increase the stability of expansion joint, the quantity of otic placode can be also 6 or 7.
The present embodiment is same as the previously described embodiments, the main distinction is: described the second water inlet and outlet device comprises a diversion endless tube 9, water intake 8, water outlet 7 and connecting tube 10, described water intake 8 and water outlet 7 are symmetricly set on diversion endless tube 9, described diversion endless tube 9 is set on bellows 1, and is communicated with the first flange 3 inner chambers 6 by connecting tube 10.But in the second water inlet and outlet device, the quantity of diversion endless tube 9 also can be set to two, during installation, in described the second water inlet and outlet device the setting party of water intake 8 and water outlet 7 to preferably with the setting party of water intake 8 in the first water inlet and outlet device and water outlet 7 to the same.
Embodiment 3
The present embodiment is same as the previously described embodiments, and the main distinction is: the quantity of the connecting tube 10 between described every diversion endless tube 9 and flange is 12.
Embodiment 4
The present embodiment is same as the previously described embodiments, and the main distinction is: the quantity of the connecting tube 10 between described every diversion endless tube 9 and flange is 16.
Claims (8)
1. a Double water-cooled expansion joint, comprise bellows (1), guide shell (2), the first flange (3) and the second flange (4), the two ends of bellows (1) are fixedly connected with the second flange (4) with the first flange (3) respectively, guide shell (2) fixed cover is located in bellows (1), it is characterized in that: also comprise the first water inlet and outlet device and the second water inlet and outlet device, be provided with cavity (5) in described bellows (1) tube wall and guide shell (2) barrel, be provided with two inner chambers (6) in described the first flange (3), be provided with an inner chamber (6) in the second flange (4), one of them inner chamber (6) of the first flange (3) is communicated with the inner chamber (6) of the second flange (4) by the cavity (5) of bellows (1), another inner chamber (6) of the first flange (3) is communicated with the cavity (5) of guide shell (2), described the first water inlet and outlet device, the first flange (3), after being connected with the second flange (4), bellows (1) forms the first cooling system, described the second water inlet and outlet device, after being connected with guide shell (2), the first flange (3) forms the second cooling system.
2. a kind of Double water-cooled expansion joint as claimed in claim 1, it is characterized in that: described the first water inlet and outlet device comprises diversion endless tube (9), water intake (8), water outlet (7) and connecting tube (10), described water intake (8) and water outlet (7) all are arranged on diversion endless tube (9), it is upper that described diversion endless tube (9) is set in bellows (1), and be communicated with flange inner chamber (6) by connecting tube (10).
3. a kind of Double water-cooled expansion joint as claimed in claim 2, it is characterized in that: the quantity of described diversion endless tube (9) is two, wherein a diversion endless tube (9) is connected with the first flange (3) inner chamber (6) by connecting tube (10), another root diversion endless tube (9) is communicated with the second flange (4) inner chamber (6) by connecting tube (10), it is upper that described water intake (8) and water outlet (7) are separately positioned on two diversion endless tubes (9), and the water intake (8) on two diversion endless tubes (9) and water outlet (7) misplace and be symmetrical arranged.
4. a kind of Double water-cooled expansion joint as claimed in claim 1, it is characterized in that: described the second water inlet and outlet device comprises a diversion endless tube (9), water intake (8), water outlet (7) and connecting tube (10), described water intake (8) and water outlet (7) are symmetricly set on diversion endless tube (9), it is upper that described diversion endless tube (9) is set in bellows (1), and be communicated with the first flange (3) inner chamber (6) by connecting tube (10).
5. as claim 2,3 or 4 described a kind of Double water-cooled expansion joints, it is characterized in that: the quantity of the connecting tube (10) between described every diversion endless tube (9) and flange is 12-16.
6. as claim 2,3 or 4 described a kind of Double water-cooled expansion joints, it is characterized in that: in described diversion endless tube (9), be provided with for cutting off the closure plate (11) of diversion endless tube (9) cavity.
7. a kind of Double water-cooled expansion joint as claimed in claim 1, it is characterized in that: described the first flange (3) and the second flange (4) are male and female flange (12).
8. as claim 1,2,4 or 8 described a kind of Double water-cooled expansion joints, it is characterized in that: the length of described guide shell (2) is less than the length of bellows (1), and a wherein end of guide shell (2) and the first flange (3) are welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320395736.4U CN203375075U (en) | 2013-07-04 | 2013-07-04 | Double-layer water-cooled expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320395736.4U CN203375075U (en) | 2013-07-04 | 2013-07-04 | Double-layer water-cooled expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203375075U true CN203375075U (en) | 2014-01-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320395736.4U Withdrawn - After Issue CN203375075U (en) | 2013-07-04 | 2013-07-04 | Double-layer water-cooled expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203375075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307401A (en) * | 2013-07-04 | 2013-09-18 | 德阳市瑞祥机械厂 | Double-water-cooling expansion joint |
-
2013
- 2013-07-04 CN CN201320395736.4U patent/CN203375075U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307401A (en) * | 2013-07-04 | 2013-09-18 | 德阳市瑞祥机械厂 | Double-water-cooling expansion joint |
| CN103307401B (en) * | 2013-07-04 | 2016-03-16 | 德阳市瑞祥机械厂 | Double water-cooled expansion joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140101 Effective date of abandoning: 20160316 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |