CN203703477U - Exhaust duct with double-compensation function - Google Patents
Exhaust duct with double-compensation function Download PDFInfo
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- CN203703477U CN203703477U CN201320774464.9U CN201320774464U CN203703477U CN 203703477 U CN203703477 U CN 203703477U CN 201320774464 U CN201320774464 U CN 201320774464U CN 203703477 U CN203703477 U CN 203703477U
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- branch pipe
- horizontal branch
- supervisor
- exhaust duct
- vertical
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Abstract
The utility model relates to an exhaust duct, and particularly relates to an exhaust duct with a double-compensation function. The exhaust duct comprises a vertical main pipe and a horizontal main pipe, wherein the top end of the vertical main pipe is connected with two vertical branch pipes; the top end of the vertical branch pipe is connected with a first horizontal branch pipe; the first horizontal branch pipe is connected with a second horizontal branch pipe through an eccentric reducer; a plurality of steam distribution branch pipes are respectively arranged on both the first horizontal branch pipe and the second horizontal branch pipe; four steel beams are arranged on the first horizontal branch pipe; three steel beams are arranged on the second horizontal branch pipe; a first I beam is arranged below the fourth steel beam of the first horizontal branch pipe; second I beams are arranged below the other three steel beams of the first horizontal branch pipe and the three steel beams of the second horizontal branch pipe; the first I beam is welded and fixed with the steel beam; the second I beams are glidingly connected with the steel beam. By adopting the structure, the exhaust duct has the benefits that compensation can be realized through a compensator, compensation can also be automatically realized, pipeline deformation can be reduced, and the reliability is high.
Description
Technical field
The utility model relates to a kind of exhaust duct, specifically, is the exhaust duct that has dual compensate function about a kind of.
Background technique
Exhaust duct is owing to having particularity, comprise that its temperature difference is large, pipe diameter is large, pipeline rigidity is larger, easily make distortion, earthquake and wind that pipeline thermal bulging deformation, differential settlement cause carry distortion causing etc., therefore, in the time of designing and arranging feed channel, tend to consider to select the scheme of nature compensation or expansion joint compensation.
In the time of definite pipe thermal compensation scheme, when the bore of the horizontal branch pipe of large-scale exhaust duct hour, what conventionally adopt pipeline compensates the problem that solves pipeline thermal bulging deformation naturally; In the time that the caliber of exhaust duct is larger, when pipeline cannot adopt the method for nature compensation to solve pipe stress and the stressed problem of the mouth of pipe, tends to arrange compensator and carry out the displacement of extraction duct under various operating modes.But, if enter the vapor (steam) temperature of exhaust duct when excessive, to such an extent as to while entering small-caliber pipeline, it naturally compensates limited and does not adopt again compensator compensates, the exhaust duct of pipe with small pipe diameter is just easily out of shape because thermal expansion is excessive, therefore,, on exhaust duct, option and installment can naturally compensate and can become urgent problem to swell increment and lateral expansion amount by while absorption axes scientifically and rationally.
Model utility content
The purpose of this utility model is to provide a kind of exhaust duct with dual compensate function, to solve the problem of exhaust duct because of excess Temperature thermal expansion distortion.
For achieving the above object, the utility model is by the following technical solutions:
A kind of exhaust duct with dual compensate function, comprise vertical supervisor and level supervisor, described vertical supervisor is connected by a threeway with level supervisor, described vertical supervisor's top is connected two vertical arms by a reducing tee with 90 ° of elbows, top on described vertical arm connects the first horizontal branch pipe by one 90 ° of elbows, wherein, described the first horizontal branch pipe end is provided with an eccentric reducer, described eccentric reducer connects the second horizontal branch pipe, on described the first horizontal branch pipe and the second horizontal branch pipe, be equipped with some distribution of steam arms, described the first horizontal branch pipe is provided with four girder steels, described the second horizontal branch pipe is provided with three girder steels, the 4th girder steel below of described the first horizontal branch pipe is provided with the first I-shape beam, three girder steel belows of another three girder steels of described the first horizontal branch pipe and the second horizontal branch pipe are provided with the second I-shape beam, described the first I-shape beam and girder steel are welded and fixed, the limit point of expanding with heat and contract with cold as two horizontal branch pipees, to slow down pipe deforming, described the second I-shape beam and girder steel are slidably connected.
Further, outside described vertical supervisor and level supervisor's joint, be arranged with a limiting bracket, described vertical supervisor is provided with universal coupling compensator, by means of the variation of its angle absorb vertical charge shaft to, horizontal displacement, on described vertical arm, be respectively provided with single entry hinge compensator, absorb vertical arm lateral displacement by means of the variation of its angle, described level supervisor is provided with a bend pipe pressure balance bellows with one end that vertically supervisor is connected, be mainly used in absorption level supervisor and vertically supervisor's axial and horizontal combination displacement, described level supervisor's the other end is provided with a PRESSURE TESTING BLIND FLANGE.
According to the utility model, it is upper that described limiting bracket is weldingly fixed on vertical supervisor, as vertical supervisor's fixed support, Control Shaft to horizontal thermal walking.
According to the utility model, the distance between adjacent two girder steels is 3000mm, and the span of adjacent two distribution of steam arms is 705mm.
According to the utility model, described vertical supervisor's bore is 2000mm, and the bore of described vertical arm is 1500mm, and the bore of described the first horizontal branch pipe is 1500mm, and the bore of described the second horizontal branch pipe is 1200mm.
According to the utility model, on described level supervisor and the first horizontal branch pipe, be respectively provided with a manhole, so that maintenance.
According to the utility model, described the second horizontal branch pipe end is provided with an end socket.
According to the utility model, described distribution of steam arm is seamless steel pipe, and it is lightweight, high temperature resistant, low temperature resistant, corrosion-resistant.
According to the utility model, the outer surface of described level supervisor, vertical arm, the first horizontal branch pipe and the second horizontal branch pipe all scribbles zinc-rich coating HCW-2 and HCW-1 organosilicon fire-resistant finish paint, for anticorrosion.
The exhaust duct with dual compensate function of the present utility model, its beneficial effect is:
1, the design that the 4th I-shape beam is welded and fixed, simple in structure, can only be to the thermal expansion of 90 ° of elbow directions after making the first horizontal branch pipe run into this limit point, the second horizontal branch pipe runs into after this limit point, can only, to the thermal expansion of end socket direction, can slow down the distortion of pipeline, reliability is high;
2, steam is mobile fewer and feweri with horizontal branch pipe, and the setting of eccentric reducer and the second horizontal branch pipe is simple in structure, reduces consumptive material;
3, the combination of universal coupling compensator and single entry hinge compensator, can absorb vertical supervisor and the axial and horizontal thermal walking of vertical arm and the horizontal thermal walking of the first horizontal branch pipe, the second horizontal branch pipe is mainly naturally compensated and is carried out the horizontal thermal walking of extraction duct by pipeline, and reliability is high;
4, the design of the design of limiting bracket and bend pipe pressure balance bellows, bend pipe pressure balance bellows can absorb limiting bracket and numerical value supervisor's the vertical pipeline that is welded and fixed a below and the displacement of horizontal main pipeline, be mainly used in absorbing vertical supervisor should be welded and fixed a below axially and the horizontal combination displacement be responsible for of level;
5, the use of bend pipe pressure balance bellows, can also offset blind plate power, makes the blind plate power of this main exhaust pipeline very little, prevents that the compensator on main exhaust pipeline from deforming under the effect of blind plate power, until blast.
Accompanying drawing explanation
Fig. 1 is the front schematic view of the exhaust duct with dual compensate function of the present utility model;
Fig. 2 is the side schematic view of the exhaust duct with dual compensate function of the present utility model.
Embodiment
Below in conjunction with concrete accompanying drawing, the exhaust duct with dual compensate function of the present utility model is described in further detail.
As depicted in figs. 1 and 2, for a kind of exhaust duct with dual compensate function of the present utility model, comprise vertical supervisor 6 and level supervisor 1, described vertical supervisor 6 is connected by a threeway with level supervisor 1, described vertical supervisor's 6 top is connected two vertical arms 7 with 90 ° of elbows 9 by a reducing tee 8, top on described vertical arm 7 connects one first horizontal branch pipe 14 by one 90 ° of elbows 9, wherein, described the first horizontal branch pipe 14 ends are provided with an eccentric reducer 15, described eccentric reducer 15 connects the second horizontal branch pipe 16, on described the first horizontal branch pipe 14 and the second horizontal branch pipe 16, be equipped with some distribution of steam arms 24, described the first horizontal branch pipe 14 is provided with four girder steels 12, described the second horizontal branch pipe 16 is provided with three girder steels 12, the 4th girder steel 12 belows of described the first horizontal branch pipe 14 are provided with the first I-shape beam 18, the below of another three girder steels 12 of described the first horizontal branch pipe 14 and three girder steels 12 of the second horizontal branch pipe 16 is provided with the second I-shape beam 19, described the first I-shape beam 18 is welded and fixed with girder steel 12, the limit point of expanding with heat and contract with cold as the first horizontal branch pipe 14 and the second horizontal branch pipe 16, to slow down pipe deforming, described the second I-shape beam 19 is slidably connected with girder steel 12.
Outside described vertical supervisor 6 and level supervisor's 1 joint, be arranged with a limiting bracket 20, described vertical supervisor 6 is provided with universal coupling compensator 4, absorb the axial and horizontal displacement of vertical supervisor 6 by means of the variation of its angle, on described vertical arm 7, be respectively provided with single entry hinge compensator 11, absorb vertical arm 7 lateral displacements by means of the variation of its angle, described level supervisor 1 is provided with a bend pipe pressure balance bellows 2 with vertical supervisor 6 one end that are connected, be mainly used in absorption level supervisor 1 and vertically axial and horizontal combination displacement of the supervisor 6, described level supervisor's 1 the other end is provided with a PRESSURE TESTING BLIND FLANGE 22.
Described limiting bracket 20 is weldingly fixed on vertical supervisor 6, as vertical supervisor's 6 fixed support, Control Shaft to horizontal thermal walking.
The distance that adjacent two girder steels are 12 is 3000mm, and the span of adjacent two distribution of steam arms 24 is 705mm.
Described vertical supervisor's 6 bore is 2000mm, and the bore of described vertical arm 7 is 1500mm, and the bore of described the first horizontal branch pipe 14 is 1500mm, and the bore of described the second horizontal branch pipe 16 is 1200mm.
On described level supervisor 1 and the first horizontal branch pipe 14, be respectively provided with a manhole 21, so that maintenance.
Described the second horizontal branch pipe 16 ends are provided with an end socket 17.
Described distribution of steam arm 24 is seamless steel pipe, and it is lightweight, high temperature resistant, low temperature resistant, corrosion-resistant.
The outer surface of described level supervisor 1, vertical arm 7, the first horizontal branch pipe 14 and the second horizontal branch pipe 16 all scribbles zinc-rich coating HCW-2 and HCW-1 organosilicon fire-resistant finish paint, for anticorrosion.
In the time that high temperature and high pressure steam enters exhaust duct from steam turbine, because having the angle of both direction, universal coupling compensator 4 is out of shape, by vertically, the displacement that moves horizontally to compensate vertical supervisor's 6 expanded by heating and extend, single entry hinge compensator 11 has the angle distortion of a direction, the displacement that can extend to compensate vertical arm 7 expanded by heating by transverse shifting, therefore, the fixing soldering point 3 of the fixing soldering point 3(of common absorption that is used in combination of universal coupling compensator 4 and single entry hinge compensator 11 is welded and fixed place with limiting bracket 20 for vertical supervisor 6) vertical supervisor 6 and the vertical Axial Thermal displacement of arm 7 and the horizontal thermal walking of the first horizontal branch pipe 14 of top, bend pipe pressure balance bellows 2, be mainly used in absorption level supervisor 1 and fixing soldering point 16 belows vertical supervisor 6 laterally with axial combination displacement, being used in combination of universal coupling compensator 4, single entry hinge compensator 11 and bend pipe pressure balance bellows 2, absorption level simultaneously supervisor 1, be vertically responsible for 6, vertically arm 7 and the first horizontal branch pipe 14 laterally and Axial Thermal displacement, prevent thermal expansion of pipeline distortion.
When high temperature and high pressure steam enters after the first horizontal branch pipe 14 and the second horizontal branch pipe 16, due to being welded and fixed of the first I-shape beam 18 and girder steel 12, make the first horizontal pipe 14 be only heated to the direction of 90 ° of elbows 9 expand and the second horizontal branch pipe 16 be heated can only terminad end socket 17 direction expand, in the time that vapor (steam) temperature reduces, the first horizontal branch pipe 14 and the second horizontal branch pipe 15 shrink, due to the position-limiting action of the first I-shape beam 18, make the first horizontal branch pipe 14 and the second horizontal branch pipe 15 get back to nature.
Claims (9)
1. one kind has the exhaust duct of dual compensate function, comprise vertical supervisor and level supervisor, described vertical supervisor is connected by a threeway with level supervisor, described vertical supervisor's top is connected two vertical arms by a reducing tee with 90 ° of elbows, top on described vertical arm connects the first horizontal branch pipe by one 90 ° of elbows, it is characterized in that, described the first horizontal branch pipe end is provided with an eccentric reducer, described eccentric reducer connects the second horizontal branch pipe, on described the first horizontal branch pipe and the second horizontal branch pipe, be equipped with some distribution of steam arms, described the first horizontal branch pipe is provided with four girder steels, described the second horizontal branch pipe is provided with three girder steels, the 4th girder steel below of described the first horizontal branch pipe is provided with the first I-shape beam, three girder steel belows of another three girder steels of described the first horizontal branch pipe and the second horizontal branch pipe are provided with the second I-shape beam, described the first I-shape beam and girder steel are welded and fixed, described the second I-shape beam and girder steel are slidably connected.
2. the exhaust duct with dual compensate function as claimed in claim 1, it is characterized in that, outside described vertical supervisor and level supervisor's joint, be arranged with a limiting bracket, described vertical supervisor is provided with universal coupling compensator, on described vertical arm, be respectively provided with single entry hinge compensator, described level supervisor is provided with a bend pipe pressure balance bellows with one end that vertically supervisor is connected, and described level supervisor's the other end is provided with a PRESSURE TESTING BLIND FLANGE.
3. the exhaust duct with dual compensate function as claimed in claim 2, is characterized in that, it is upper that described limiting bracket is weldingly fixed on vertical supervisor, as vertical supervisor's fixed support.
4. the exhaust duct with dual compensate function as claimed in claim 1, is characterized in that, the distance between adjacent two girder steels is 3000mm, and the span of adjacent two distribution of steam arms is 705mm.
5. the exhaust duct with dual compensate function as claimed in claim 1, it is characterized in that, described vertical supervisor's bore is 2000mm, and the bore of described vertical arm is 1500mm, the bore of described the first horizontal branch pipe is 1500mm, and the bore of described the second horizontal branch pipe is 1200mm.
6. the exhaust duct with dual compensate function as claimed in claim 1, is characterized in that, on described level supervisor and the first horizontal branch pipe, is respectively provided with a manhole.
7. the exhaust duct with dual compensate function as claimed in claim 1, is characterized in that, described the second horizontal branch pipe end is provided with an end socket.
8. the exhaust duct with dual compensate function as claimed in claim 1, is characterized in that, described distribution of steam arm is seamless steel pipe.
9. the exhaust duct with dual compensate function as claimed in claim 1, it is characterized in that, the outer surface of described level supervisor, vertical arm, the first horizontal branch pipe and the second horizontal branch pipe all scribbles zinc-rich coating HCW-2 and HCW-1 organosilicon fire-resistant finish paint, for anticorrosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320774464.9U CN203703477U (en) | 2013-11-28 | 2013-11-28 | Exhaust duct with double-compensation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320774464.9U CN203703477U (en) | 2013-11-28 | 2013-11-28 | Exhaust duct with double-compensation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203703477U true CN203703477U (en) | 2014-07-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320774464.9U Expired - Fee Related CN203703477U (en) | 2013-11-28 | 2013-11-28 | Exhaust duct with double-compensation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203703477U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442136A (en) * | 2020-03-30 | 2020-07-24 | 中国成达工程有限公司 | Stress compensation structure and method for inner and outer pipelines of high-temperature molten salt tank |
| CN112513506A (en) * | 2018-04-05 | 2021-03-16 | 巴西石油公司 | Expansion joint |
-
2013
- 2013-11-28 CN CN201320774464.9U patent/CN203703477U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112513506A (en) * | 2018-04-05 | 2021-03-16 | 巴西石油公司 | Expansion joint |
| CN111442136A (en) * | 2020-03-30 | 2020-07-24 | 中国成达工程有限公司 | Stress compensation structure and method for inner and outer pipelines of high-temperature molten salt tank |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20181128 |