CN104405992A - Expansion joint assembly for vent passage system of gas turbine power station - Google Patents
Expansion joint assembly for vent passage system of gas turbine power station Download PDFInfo
- Publication number
- CN104405992A CN104405992A CN201410720683.8A CN201410720683A CN104405992A CN 104405992 A CN104405992 A CN 104405992A CN 201410720683 A CN201410720683 A CN 201410720683A CN 104405992 A CN104405992 A CN 104405992A
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- China
- Prior art keywords
- rubber
- expansion joint
- wall section
- joint assembly
- power station
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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
- F16L51/00—Expansion-compensation arrangements for pipe-lines
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
An expansion joint assembly for a vent passage system of a gas turbine power station is composed of a rubber expansion joint and a batten. The rubber expansion joint is formed by a cylindrical rubber joint body, a rubber left flange and a rubber right flange, wherein the rubber left flange and the rubber right flange are located at two ends of the cylindrical rubber joint body respectively; the rubber left flange, the rubber right flange and the cylindrical rubber joint body are of an integrated structure. During use, the batten is installed on the inner end surfaces of the rubber left flange and the rubber right flange.
Description
Technical field
The invention belongs to expansion joint field, the expansion joint assembly particularly for using in combustion engine power station ventilation channel system.
Background technique
The expansion joint assembly used in existing combustion engine power station ventilation channel system mostly be Stainless Sheet Steel make two flanges and flexible cloth cylinder combine, two flanges are connected with the two ends of flexible cloth cylinder respectively by screw.During use, the height (distances namely between two flanged surfaces) of whole expansion joint assembly is regulated by 6 ~ 8 overhanging hangers and supporting screw device thereof.The shortcoming that the expansion joint assembly of this kind of structure exists is: 1. flanged surface is owing to being plated construction, there is welding deformation to a certain degree, and owing to being frame hollow structure, intensity is lower; 2. flexible cloth need from foreign procurement, and procurement cycle is long, and cost is high, and flexible cloth cylinder is formed by viscose glue bonding by the flexible cloth of hatch frame, if bonding not firm, come off existence risk; 3. regulate whole height inconvenient, need manually the nut at each overhanging hanger screw rod place be unscrewed and again be tightened in suitable place, whole adjustment process belongs to high-lift operation, there is certain potential safety hazard; 4. because whole ventilation channel system Environmental Conditions is the special geology district such as desert, Gobi desert, day and night temperature is large, has the external cause such as high wind, macroseism to disturb, thus very easily affects the tightness of expansion joint assembly threaded connection place.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, for combustion engine power station ventilation channel system provides a kind of novel expansion joint assembly, in use to realize the height automatically being regulated self by expansion joint assembly, and improve the stability of self and the tightness of combustion engine power station ventilation channel system.
Expansion joint assembly for combustion engine power station ventilation channel system of the present invention is made up of rubber swelling joint and press strip, described rubber swelling joint is by cartridge type elastomer connector body and lay respectively at the left flange of rubber at cartridge type elastomer connector body two ends, the right flange of rubber forms, the left flange of rubber and the right flange of rubber and cartridge type elastomer connector body are integrated, during use, described press strip is arranged on the interior edge face of the left flange of rubber and the right flange of rubber.
In order to increase the automatic telescopic amount of rubber swelling joint, cartridge type elastomer connector body is designed to three stage structure, namely cartridge type elastomer connector body by cambered surface wall section and lay respectively at the first planar wall section of cambered surface wall section both sides, the second planar wall section forms.Preferably the first planar wall section is identical with the height of the second planar wall section, the aspect ratio first planar wall section of cambered surface wall section, the large 5mm ~ 10mm of height sum of the second planar wall section.
In order to match with combustion engine power station ventilation channel system, the cross section forming the cambered surface wall section of cartridge type elastomer connector body, the first planar wall section and the second planar wall section is rectangular ring, and the left flange of rubber, the right flange of rubber are rectangular ring.In order to mate with the left flange of the rubber of rectangular ring structure, the right flange of rubber, press strip has lineal shape press strip and corner shape press strip two kinds of structural types, the corner of described corner shape press strip is right angle, during use, be combined into by lineal shape press strip and corner shape press strip the interior edge face being arranged on the left flange of rubber and the right flange of rubber with rectangular ring.
Expansion joint assembly for combustion engine power station ventilation channel system of the present invention, preferred press strip is the stainless steel strip of 6mm ~ 10mm thickness.
Expansion joint assembly for combustion engine power station ventilation channel system of the present invention, its rubber swelling joint is preferably made by sulfuration ethylene propylene diene rubber, the elongation of this type of rubber is 10%, operating temperature 120 DEG C (limiting value 170 DEG C), working pressure 33KPa (limiting value 50KPa).
In expansion joint assembly of the present invention and combustion engine power station ventilation channel system, the compound mode of airduct as shown in Figure 7, and whole ventilation system is made up of the airduct of some sections of fixed lengths and one to two expansion joint assembly.Expansion joint assembly is arranged between the airduct of two fixed lengths, and Placement is that screw connects, and press strip is arranged on the interior edge face of the left flange of rubber and the right flange of rubber.Whole ventilation channel system inside flows through high-temperature fuel gas, outside by plateau high wind, sunshine, dust storm corrosive effect, make system in all directions because expanding with heat and contract with cold and interior external carbuncle generation distortion to a certain degree, expansion joint assembly of the present invention regulates self height automatically according to the change of external condition, play a part buffer system distortion.
The present invention has following beneficial effect:
1, because the main component of expansion joint assembly of the present invention is rubber swelling joint, and the cartridge type elastomer connector body of formation rubber swelling joint, the left flange of rubber and the right flange of rubber are integrated, thus automatically can regulate the height of self according to the change of external condition, and the stability of self can be improved.
2, because expansion joint assembly of the present invention can regulate the height of self automatically according to the change of external condition, therefore no longer need to regulate manually, not only solve the risk that high-altitude manual work is brought, improve Security, and can human resources be saved, reduce operating cost.
3, be integrated owing to forming the cartridge type elastomer connector body of rubber swelling joint, the left flange of rubber and the right flange of rubber, thus easy for installation, fast.
4, because expansion joint assembly of the present invention is provided with stainless steel press strip at the interior edge face of the left flange of rubber and the right flange of rubber, thus make the flanged surface of rubber swelling joint and external flange face fit after combination tighter, improve the tightness of whole ventilation system.
5, expansion joint modular construction of the present invention is simple, is convenient to processing and fabricating.
Accompanying drawing explanation
Fig. 1 is the stereogram of expansion joint assembly of the present invention;
Fig. 2 is the plane figure of expansion joint assembly of the present invention;
Fig. 3 is the A-A sectional drawing of Fig. 2;
Fig. 4 is the schematic diagram of corner shape press strip;
Fig. 5 is the schematic diagram of lineal shape press strip,
Fig. 6 is the schematic diagram that corner shape press strip and lineal shape press strip are combined into rectangular ring;
Fig. 7 is the combination schematic diagram of airduct in expansion joint assembly of the present invention and combustion engine power station ventilation channel system.
In figure, 1 rubber swelling joint, the left flange of 1-1 rubber, the right flange of 1-2 rubber, 1-3 first planar wall section, 1-4 second planar wall section, 1-5 cambered surface wall section, 2 press strips, 2-1 corner shape press strip, 2-2 lineal shape press strip, 3 screws, 4 nuts, 5 packing rings, 6 airducts, the height of H1 first planar wall section or the second planar wall section, the height of H2 cambered surface wall section.
Embodiment
Also by reference to the accompanying drawings expansion joint assembly of the present invention is described further below by embodiment.
Expansion joint assembly in the present embodiment as shown in Figure 1, Figure 2, Figure 3 shows, is made up of rubber swelling joint 1 and press strip 2.Rubber swelling joint 1 is by cartridge type elastomer connector body and the left flange 1-1 of rubber laying respectively at cartridge type elastomer connector body fittings body two ends, the right flange 1-2 of rubber is formed, cartridge type elastomer connector body is by cambered surface wall section 1-5 and the first planar wall section 1-3 laying respectively at cambered surface wall section both sides, second planar wall section 1-4 is formed, the height H 2=100mm of cambered surface wall section, the height H 1=46mm of the height H 1=second planar wall section of the first planar wall section, cambered surface wall section 1-5, the cross section of the first planar wall section 1-3 and the second planar wall section 1-4 is rectangular ring, the left flange 1-1 of rubber, rubber right flange 1-2 is measure-alike rectangular ring.The material of rubber swelling joint 1 is sulfuration ethylene propylene diene rubber (EPDM), by mould straight forming, form the right flange of the cartridge type elastomer connector body of rubber swelling joint 1, the left flange of rubber and rubber and form integral structure, the wall thickness of cartridge type elastomer connector body is 4mm, and the thickness of the left flange of rubber and the right flange of rubber is 4mm.Press strip 2 has lineal shape press strip and corner shape press strip two kinds of structural types, corner shape press strip 2-1 as shown in Figure 4, its corner is right angle, lineal shape press strip 2-2 as shown in Figure 5, lineal shape press strip and corner shape press strip are the stainless steel strip of 8mm thickness, during use, lineal shape press strip, corner shape press strip are combined into and rectangular ring, as shown in Figure 6.
Rubber left flange 1-1, the right flange 1-2 of rubber of expansion joint assembly and press strip 2 are joined and is drilled with attachment hole, during with blast pipe assembled in combustion engine power station ventilation channel system, by screw 3, nut 4, packing ring 5 assembly connection, press strip 2 is arranged on the interior edge face of rubber left flange 1-1 and the right flange 1-2 of rubber, as shown in Figure 7.During whole ventilating operation, if due to the airduct 6 occurrence positions change (relative distance increases or shortens) that external force makes expansion joint assembly both sides connect, the pulling force then produced or pressure will all be absorbed by rubber swelling joint 1 therebetween, can not marry again on all the other stiff members, thus can avoid the structural damage that ventilation system internal stress causes.
Claims (10)
1. the expansion joint assembly for combustion engine power station ventilation channel system, it is characterized in that being made up of rubber swelling joint (1) and press strip (2), described rubber swelling joint (1) is by cartridge type elastomer connector body and lay respectively at the left flange of rubber (1-1) at cartridge type elastomer connector body two ends, the right flange of rubber (1-2) forms, the left flange of rubber (1-1) and the right flange of rubber and cartridge type elastomer connector body are integrated, during use, described press strip is arranged on the interior edge face of the left flange of rubber (1-1) and the right flange of rubber.
2. according to claim 1 for the expansion joint assembly of combustion engine power station ventilation channel system, it is characterized in that described cartridge type elastomer connector body by cambered surface wall section (1-5) and lay respectively at the first planar wall section (1-3) of cambered surface wall section both sides, the second planar wall section (1-4) forms.
3. according to claim 2 for the expansion joint assembly of combustion engine power station ventilation channel system, it is characterized in that the first planar wall section (1-3) is identical with the height of the second planar wall section (1-4), aspect ratio first planar wall section (1-3) of cambered surface wall section (1-5), the large 5mm ~ 10mm of height sum of the second planar wall section (1-4).
4. according to Claims 2 or 3 for the expansion joint assembly of combustion engine power station ventilation channel system, it is characterized in that the cross section of cambered surface wall section (1-5), the first planar wall section (1-3) and the second planar wall section (1-4) is rectangular ring, the left flange of rubber (1-1), the right flange of rubber (1-2) are rectangular ring.
5., according to claim 4 for the expansion joint assembly of combustion engine power station ventilation channel system, it is characterized in that press strip (2) has lineal shape press strip and corner shape press strip, the corner of corner shape press strip is right angle.
6. according to claim arbitrary in claims 1 to 3 for the expansion joint assembly of combustion engine power station ventilation channel system, it is characterized in that the stainless steel strip that press strip (2) is 6mm ~ 10mm thickness.
7., according to claim 4 for the expansion joint assembly of combustion engine power station ventilation channel system, it is characterized in that the stainless steel strip that press strip (2) is 6mm ~ 10mm thickness.
8., according to claim 5 for the expansion joint assembly of combustion engine power station ventilation channel system, it is characterized in that the stainless steel strip that press strip (2) is 6mm ~ 10mm thickness.
9. according to claim arbitrary in claims 1 to 3 for the expansion joint assembly of combustion engine power station ventilation channel system, it is characterized in that rubber swelling joint (1) is made by sulfuration ethylene propylene diene rubber.
10., according to claim 4 for the expansion joint assembly of combustion engine power station ventilation channel system, it is characterized in that rubber swelling joint (1) is made by sulfuration ethylene propylene diene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410720683.8A CN104405992A (en) | 2014-12-01 | 2014-12-01 | Expansion joint assembly for vent passage system of gas turbine power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410720683.8A CN104405992A (en) | 2014-12-01 | 2014-12-01 | Expansion joint assembly for vent passage system of gas turbine power station |
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| Publication Number | Publication Date |
|---|---|
| CN104405992A true CN104405992A (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410720683.8A Pending CN104405992A (en) | 2014-12-01 | 2014-12-01 | Expansion joint assembly for vent passage system of gas turbine power station |
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| CN (1) | CN104405992A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864549A (en) * | 2016-06-16 | 2016-08-17 | 江苏扬光机械制造有限公司 | Compound rectangular expansion joint |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089446A (en) * | 2007-07-05 | 2007-12-19 | 滕州市绿原机械制造有限责任公司 | Polymer composite corrugated expansion joint |
| CN201731215U (en) * | 2010-04-30 | 2011-02-02 | 阎瑞杰 | Rectangular air duct rubber compensator |
| CN201807277U (en) * | 2010-09-09 | 2011-04-27 | 江苏宝金来管道成套设备有限公司 | Nonmetal compensator used for flue gas desulfurization system |
| CN203363517U (en) * | 2013-05-24 | 2013-12-25 | 贵州开磷（集团）有限责任公司 | Rubber expansion joint |
| CN203847890U (en) * | 2014-04-16 | 2014-09-24 | 江苏苏创管业科技有限公司 | High-pressure-resisting nonmetal corrugation compensator |
| CN204345156U (en) * | 2014-12-01 | 2015-05-20 | 四川成发普睿玛机械工业制造有限责任公司 | For the expansion joint assembly of combustion engine power station ventilation channel system |
-
2014
- 2014-12-01 CN CN201410720683.8A patent/CN104405992A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101089446A (en) * | 2007-07-05 | 2007-12-19 | 滕州市绿原机械制造有限责任公司 | Polymer composite corrugated expansion joint |
| CN201731215U (en) * | 2010-04-30 | 2011-02-02 | 阎瑞杰 | Rectangular air duct rubber compensator |
| CN201807277U (en) * | 2010-09-09 | 2011-04-27 | 江苏宝金来管道成套设备有限公司 | Nonmetal compensator used for flue gas desulfurization system |
| CN203363517U (en) * | 2013-05-24 | 2013-12-25 | 贵州开磷（集团）有限责任公司 | Rubber expansion joint |
| CN203847890U (en) * | 2014-04-16 | 2014-09-24 | 江苏苏创管业科技有限公司 | High-pressure-resisting nonmetal corrugation compensator |
| CN204345156U (en) * | 2014-12-01 | 2015-05-20 | 四川成发普睿玛机械工业制造有限责任公司 | For the expansion joint assembly of combustion engine power station ventilation channel system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864549A (en) * | 2016-06-16 | 2016-08-17 | 江苏扬光机械制造有限公司 | Compound rectangular expansion joint |
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Application publication date: 20150311 |
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