CN1570453A - Sandwich construction fiber reinforced elastic body pipe compensator and forming method thereof - Google Patents
Sandwich construction fiber reinforced elastic body pipe compensator and forming method thereof Download PDFInfo
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Abstract
Belonging to field of composite material technics, the invention relates to fibre with multi-layer structure enhanced elastomer pipeline compensator. The compensator is made up with compensate pipeline, two flanges fixedly connected with the compensate pipeline and a diversion knot fixedly connected with one of the two flanges and installed in compensate pipeline. Tube wall's structure is as follows: outer layer is fibre enhanced elastomer composite material (FEC) whose concrete form is fibre cloth enhanced latex mixedly weaved by non-asbestos fibre and steel wire; the second layer is anti corrosive coating wax cloth made by polytetrafluoroethylene (PTFE); the third layer is thermal protective coating made by glass wool or refractory wool in block shape between two layers of glass fibre clothes; inter layer is dust layer made by glass fibre dilatants voile fabric braided after surface treatment. With a new structure, the pipeline compensator has an environment-friendly, high intensity.
Description
Technical field
The present invention relates to a kind of multiple structural fibre and strengthen duct made of elastomer compensator and forming method thereof, belong to the composite material manufacturing technology technical field.
Background technique
Pipeline compensator is the annex that requisite temperature variation by way of compensation causes pipe deforming in the pipe-line system, to the important role in safe operation of pipe-line system.Common pipeline compensator has four classes: 1. adopt the square-shaped joints after the continuous bend pipe of ∏ type absorbs thermal distortion; 2. utilize the sleeve pipe that can freely stretch to compensate the sleeve compensator of temperature deformation; 3. regulate the bellow expansion joint of pipeline thermal distortion by the resiliently deformable of ripple on the bellows; 4. according to the fiber reinforcement duct made of elastomer compensator of the hyperelastic deformation extraction duct displacement of high-performance composite materials, the advantage of many uniquenesses such as multi-dimensional direction, compensation rate are big because of having for this compensator, noise elimination shock insulation, corrosion protection, no reaction thrust, in light weight and installation and maintenance are convenient, and extensively apply to industries such as petrochemical industry, Ferrous Metallurgy, electric power and cement building material, (in the smoke wind pipe as coal gas-Steam Combined Cycle unit and large electric power plant unit) replaces other three classes compensator fully in some field.
Since last century, the fifties was born, the research and development and the application of fiber reinforcement duct made of elastomer compensator spreaded all over industrialized country.Strengthen matrix and develop into glass fibre and aromatic polyamide fiber by initial asbestos fiber.
Although the glass fibre reinforced elastomer compensator develops rapidly surplus nearly ten in year, relatively still there are tangible gap in its combination property, especially fracture toughness and fatigue life and asbestos product.Adopt glass fibre and heatproof organic fiber mix enhancing the duct made of elastomer compensator can obtain certain raising using as a servant the life-span, but the resistance to high temperature of material significantly reduces and manufacture cost significantly increases, and has hindered the use of widening of such compensating element.Therefore the asbestos pipeline compensator still in a large amount of uses, works the mischief to environment under many operating modes.At present, no matter strengthen base for asbestos fiber or glass fibre, when existing fiber reinforcement duct made of elastomer compensator product is used for the dust-containing airflow conveyance conduit, because of the wearing and tearing of solid particle cause all being lower than its actual life design load.
Summary of the invention
The object of the present invention is to provide a kind of novel multiple structural fibre to strengthen the duct made of elastomer compensator, make its environmentally safe, and have premium properties, increase the service life.
A kind of multiple structural fibre of the present invention strengthens the duct made of elastomer compensator, fixedly connected to such an extent that two flanges and an end are fixedlyed connected with one of two flanges and be installed in the water conservancy diversion cover that compensates in the pipeline section and constitute by the compensation pipeline section, with compensation pipeline section two ends, it is characterized in that, the structural pipe wall of compensation pipeline section is: outer is fiber reinforcement elastic composite (FEC), and the concrete form of this material is the fibre cloth Reinforced Rubber of non-asbestos fiber and steel wire mixed weaving; The second layer is the anticorrosive coat that is made of the polytetrafluoroethylene (PTFE) varnished cloth; The 3rd layer is the thermal-protective coating that is made of block glass wool that coats between the layer glass fibre cloth or ceramic wool; Internal layer is the dust layer that surface treated bulked glass yarn weave cloth constitutes.
Above-mentioned non-asbestos fiber can be a kind of of glass fibre, aramid fibre or carbon fiber or its mixture; Described elastomer rubber can be a kind of of ethylene propylene diene rubber, neoprene, nitrile butadiene rubber, butyl rubber, silicone rubber or fluorine rubber or its mixture; Described steel wire can be a kind of of stainless steel or other alloy steel wires, and the volumn concentration of steel wire in fibre cloth is 5-35%.
Above-mentioned coaxial annular astragal both ends open place also can be coated with the bulked glass yarn weave cloth as the bound edge material.
A kind of multiple structural fibre according to claim 1 strengthens the forming method of duct made of elastomer compensator, it is characterized in that this method has following process and step
A. prepare continuous fiber by traditional common process and strengthen elastic composite, be about to glass fibre and become fibre cloth with the steel wire mixed weaving, this weave cloth is carried out surface treatment, and brush the PAPI tackifier that one deck thickness is about 0.01-0.05mm on its surface, with calendering viscose glue molding mode, the predetermined rubber that uses is covered rubber in the two-sided calendering of fibre knitting cloth, through the roll-in sulfuration, promptly can be made into fiber reinforcement elastic composite (FEC) again;
B. above-mentioned FEC is cut into strip-type by design size; Peel off with base cloth the front rubber A of the long L=100mm of adhesive tape one end is complete, expose base cloth C, front glue D and the base cloth of adhesive tape the other end equal length are peeled off, and this section rubber D is removed (secant is concordant), expose the beneath base cloth B of glue equally; B and C are overlapped neat (B below), laterally evenly meet with glass wire to connect 15mm * 5 roads; With high-temperature-resistant adhesive A and C are glued together again at last.
C. the polytetrafluoroethylene (PTFE) varnished cloth anticorrosive coat with 0.1-0.3mm thickness is cut into strip-type; This band two ends overlap is polished with abrasive paper for metallograph, then wash airing with acetone; Add with the overlap joint hypotenuse isometricly at bonding layer place up and down, width is the special welding rod (polyvinylidene difluoride film hot melt adhesive) of 10mm; To the welding rod fusing, be cooled to room temperature by vulcanizing press hot pressing (190 ℃ of temperature) faying surface rapidly, the PTFE varnished cloth promptly is overlapped to form the annular astragal of certain diameter;
The bulked glass yarn weave cloth of d. will handle through silane coupler, polytetrafluoroethylene teflon soliquoid flooding, the graphite coating ternary is handled constitutes dust layer; Block glass wool or ceramic wool formation thermal-protective coating will be coated again between the layer glass fibre cloth; Equally also they are overlapped to form the annular astragal of certain diameter;
E. with above-mentioned FEC, polytetrafluoroethylene (PTFE) varnished cloth anticorrosive coat, thermal-protective coating with dust layer is coaxial connects together, its each lap joint position is staggered 90 ° mutually, constitutes the annular astragal that contains four layers of combination;
F. widely be the handling the voluminous yarn glass cloth through ternary and respectively bound edge is carried out at combination astragal two ends of 100mm with two, and fix with glass fibre teflon suturing with thread management;
G. above-mentioned annular astragal finished product installation is connected on the metallic support flange that contains transition arc, with metal platen and bolt, and then the water conservancy diversion cover of burn-oning, promptly become at the multiple structural fibre of installing and using under the state and strengthen the duct made of elastomer compensator.
The multiple structural fibre that the inventive method is made strengthens the duct made of elastomer compensator, because of adopting to mix, fiber reinforcement elastic composite reinforcing phase knitted the steel wire non-asbestos fiber of some, so the non-environmental-pollution problem, its tensile strength, anti-bending are disturbed number of times, fatigue life and all are significantly improved.Handle glass fiber cloth dust layer and the anticorrosion material of teflon finish cloth owing to added ternary, particularly to containing the vapor plume of solid particle and aggressive medium, the pipeline compensator of this kind multi-layer structure more demonstrates the advantage of its long lifetime, the wearing and tearing of anti-solid particle and environmental protection.
Description of drawings
Fig. 1 is the structural drawing that the multiple structural fibre of one embodiment of the present of invention strengthens elastomer square pipe compensator
Fig. 2 is the structural drawing that the multiple structural fibre of an alternative embodiment of the invention strengthens elastomer circular pipe compensator
Fig. 3 strengthens elastic composite layered structure form schematic representation for multiple structural fibre of the present invention.
Fig. 4 is overlapped to form the method schematic representation of astragal for FEC in the multi-layer fiber composite material of the present invention.
Fig. 5 is overlapped to form the method schematic representation of astragal for anticorrosive coat PTFE varnished cloth in the multi-layer fiber composite material of the present invention.
Fig. 6 is the combined annular astragal that forms behind coaxial socket of multi-layer fiber composite material of the present invention and the two ends bound edge.
Embodiment
Now specific embodiments of the invention are described in the back:
Embodiment one: the working medium of this compensator is a flue gas, and its internal diameter is 430mm * 1980mm, and axially length of installation is 400mm, compensation rate≤10mm; Design pressure P≤1000Pa, temperature t≤150 ℃.Referring to Fig. 1, the multiple structural fibre of present embodiment strengthens the duct made of elastomer compensator, fixedly connected to such an extent that two flanges 2 and an end are fixedlyed connected with one of two flanges 2 and be installed in compensation pipeline section 1 interior water conservancy diversion and overlap 3 and constitute by compensation pipeline section 1, with compensation pipeline section 1 two ends, the structural pipe wall of compensation pipeline section 1 is: outer is fiber reinforcement elastic composite (FEC), and the concrete form of this material is the fibre cloth Reinforced Rubber of non-asbestos fiber and steel wire mixed weaving; The second layer is the anticorrosive coat that is made of the polytetrafluoroethylene (PTFE) varnished cloth; The 3rd layer is the thermal-protective coating that is made of block glass wool that coats between the layer glass fibre cloth or ceramic wool; Internal layer is the dust layer that surface treated bulked glass yarn weave cloth constitutes.Compensation pipeline section 1 is a square tubular, pipeline section 1 is connected with flange by bolt 5, referring to Fig. 3, the multi-layer fiber composite material that compensation pipeline section 1 adopts is provided with four layers, its four layers are respectively: the glass fiber cloth of (1) alkali-free glass fibre and Stainless Steel Wire mixed weaving strengthens the external layer of the composite material of ethylene propylene diene rubber, (2) teflon finish cloth anticorrosive coat; (3) glass fiber cloth coats glass wool block thermal-protective coating; (4) the bulked glass yarn weave cloth dust layer of ternary processing, final formation is through overlap joint and the coaxial annular astragal that is built up, and the concrete step of preparation process of present embodiment is as follows:
A. prepare the fiber reinforced rubber composite material by traditional common process, be specially: 100 parts of ethylene propylene diene rubbers were plasticated in mill 6-8 minute, it is mixing evenly to add 0.5 part of captax, 1.5 parts of TM monex TD, 2.0 parts of antioxidant Ds, 2.0 parts of stearic acid, 5.0 parts of zine oxide high abrasion carbon blacks, 2.0 parts of stearic acid, 5.0 parts of dibutyl phthalates, 40.0 parts of silicious marl and 2.0 parts of sulphur successively, and compressing tablet is also parked after 24 hours on warm-up mill fully heat refining; The folder wired glass fibre cloth (steel wire volume content 10%) that simultaneously alkali-free glass fibre and SUS304 Stainless Steel Wire is mixed the thickness that is woven into and be 3.0mm is led out, brush the PAPI tackifier of the about 0.01-0.05mm of one deck thickness on its surface, the ethylene propylene diene rubber that heat refining is finished by mangler covers the fibre cloth surface, at twice in the two-sided rubberizing in fiber top layer, the roll-in vulcanizer that will cover 160 ℃ of glue fiber cloth importings subsequently vulcanized 10 minutes, promptly formed the major component-fiber reinforced rubber composite material (FEC) of pipeline compensator of the present invention;
B. respectively above-mentioned FEC layer, polytetrafluoroethylene (PTFE) varnished cloth anticorrosive coat, thermal-protective coating and dust layer are overlapped to form annular astragal and coaxial socket, with glass fiber cloth at its both ends open place bound edge and sew up finished product after fixing, wherein the bridging method of FEC and PTFE is seen Fig. 2 and Fig. 3 respectively, and the structure shape of the socket of each layer astragal and port bound edge as shown in Figure 4.With above-mentioned finished product, promptly multi-layer fiber composite material 1 is installed on the square low carbon steel metallic support flange 5 that contains arc transition, and is fixing with metal platen 3 and bolt 4, and then the water conservancy diversion cover of burn-oning
3, promptly become the pipeline compensator of multiple structural fibre Reinforced Rubber composite material of the present invention, referring to Fig. 5.
According to relevant criterion, the main performance of above-mentioned multiple structural fibre Reinforced Rubber composite material conduit compensator sample is detected, and with single asbestos fiber strengthen ethylene propylene diene rubber (A1) and glass fibre enhancing ternary ethlene propyene rubbercompound material (B! ) the technical performance parameter compare, its structure is as shown in table 1:
Table 1 embodiment one development composite material and the main of pipeline compensator thereof can test results
| Test parameter | Testing standard | Embodiment one | A1 | B1 | ||
| FEC | Tensile strength (kN/m) | Axially | GB?5572-1985 | 6.35 | 5.56 | 5.07 |
| Laterally | 5.12 | 4.43 | 4.26 | |||
| The anti-number of times (* 10 of subduing 6) | GB/T12586-2003 | 7.07 | 7.15 | 5.32 | ||
| FECPC | Air tightness test | GB?16749-1997 | Do not have and leak | Do not have and leak | Do not have and leak | |
| Fatigue life (* 10 6) | Simulation is in the labour operating mode | 1.75 | 1.38 | 1.03 | ||
In the last table, FEC-fiber reinforced rubber composite material; FECPC-fiber reinforced rubber composite material conduit compensator
Can find out that from table composite material in the present embodiment and compensator thereof have demonstrated the preferable performance parameter than other two kinds of materials (A1, B1) and pipeline compensator thereof.
Embodiment two: referring to Fig. 2, present embodiment and the foregoing description are basic identical, and different is, compensation pipeline section 1 is a circular pipe, and manufacturing process and the foregoing description of present embodiment are basic identical, and the multi-layer structure composite material is also basic identical, referring to Fig. 6.The working medium of the compensator of present embodiment is a flue gas, and internal diameter is 2200mm, and axially length of installation is 400mm, compensation rate≤10mm, design pressure P≤1000Pa, temperature t≤300 ℃.
In the multiple structural fibre Reinforced Rubber composite material, its rubber adopts fluorine rubber, and strengthening body still is the weave cloth that glass fibre adds Stainless Steel Wire (10% volume content).Prepare fiber reinforcement fluorine rubber composite material by tratitional technology.The prescription and the conditions of vulcanization of fluorine rubber are shown in Table 2:
Table 2 fluorine rubber prescription and conditions of vulcanization
| Fluorine rubber (26B) | ????100 | Calcium hydroxide | ???2.5 | |
| Activated magnesia | ????4.5 | No. 3 vulcanzing agents | ???2.75 | |
| Common magnesium oxide | ????3.5 | The spraying carbon black | ???15.0 | |
| Zine stearate | ????1.0 | Silicious marl | ???3.0 | |
| Conditions of vulcanization | One section roll-in sulfuration: 150 ℃ * 30min; Two sections compression moldings: 250 ℃ * 16h, contain intensification 4h | |||
According to the method test identical, and contrast result such as table 3 with the technical parameter of the fluorine rubber FECPC of single asbestos (A2) and fiberglass-based (B2) with embodiment one.
Table 3 embodiment two development composite materials and the main of pipeline compensator thereof can test results
| Test parameter | Testing standard | Embodiment one | ???A1 | ????B1 | ||
| FEC | Tensile strength (kN/m) | Axially | GB?5572-1985 | ?6.03 | ??5.55 | ???4.87 |
| Laterally | ?4.62 | ??4.34 | ???3.92 | |||
| The anti-number of times (* 10 of subduing 6) | GB/T12586-2003 | ?6.10 | ??6.45 | ???5.02 | ||
| FECPC | Air tightness test | GB?16749-1997 | Do not have and leak | Do not have and leak | Do not have and leak | |
| Fatigue life (* 10 6) | Simulation is in the labour operating mode | ?1.62 | ??1.33 | ???0.96 | ||
In the last table, FEC-fiber reinforced rubber composite material
FECPC-fiber reinforced rubber composite material conduit compensator
Can find out that from table composite material in the present embodiment and compensator thereof have demonstrated the preferable performance parameter than other two kinds of materials (A2, B2) and pipeline compensator thereof.
Claims (4)
1. a multiple structural fibre strengthens the duct made of elastomer compensator, fixedly connected with one of two flanges (2) and be installed in interior water conservancy diversion cover (3) formation of compensation pipeline section (1) by compensation pipeline section (1), two flanges (2) of fixedlying connected and an end with compensation pipeline section (1) two ends, it is characterized in that, the structural pipe wall of compensation pipeline section (1) is: outer is fiber reinforcement elastic composite (FEC), and the concrete form of this material is the fibre cloth Reinforced Rubber of non-asbestos fiber and steel wire mixed weaving; The second layer is the anticorrosive coat that is made of the polytetrafluoroethylene (PTFE) varnished cloth; The 3rd layer is the thermal-protective coating that is made of block glass wool that coats between the layer glass fibre cloth or ceramic wool; Internal layer is the dust layer that surface treated bulked glass yarn weave cloth constitutes.
2. multiple structural fibre according to claim 1 strengthens the duct made of elastomer compensator, it is characterized in that described non-asbestos fiber can be a kind of of glass fibre, aramid fibre or carbon fiber or its mixture; Described elastomer rubber can be a kind of of ethylene propylene diene rubber, neoprene, nitrile butadiene rubber, butyl rubber, silicone rubber or fluorine rubber or its mixture; Described steel wire can be a kind of of stainless steel or other alloy steel wires, and the volumn concentration of steel wire in fibre cloth is 5-35%.
3. multiple structural fibre according to claim 1 strengthens the duct made of elastomer compensator, it is characterized in that described coaxial annular astragal both ends open place also can be coated with the bulked glass yarn weave cloth as the bound edge material.
4. the forming method of a multiple structural fibre enhancing duct made of elastomer compensator according to claim 1 is characterized in that this method has following process and step
A. prepare continuous fiber by traditional common process and strengthen elastic composite, be about to glass fibre and become fibre cloth with the steel wire mixed weaving, this weave cloth is carried out surface treatment, and brush the PAPI tackifier that one deck thickness is about 0.01-0.05mm on its surface, with calendering viscose glue molding mode, the predetermined rubber that uses is covered rubber in the two-sided calendering of fibre knitting cloth, through the roll-in sulfuration, promptly can be made into fiber reinforcement elastic composite (FEC) again;
B. above-mentioned FEC is cut into strip-type by design size; Peel off with base cloth the front rubber A of the long L=100mm of adhesive tape one end is complete, expose base cloth C, front glue D and the base cloth of adhesive tape the other end equal length are peeled off, and this section rubber D is removed (secant is concordant), expose the beneath base cloth B of glue equally; B and C are overlapped neat (B below), laterally evenly meet with glass wire to connect the 15mmx5 road; With high-temperature-resistant adhesive A and C are glued together again at last.
C. the polytetrafluoroethylene (PTFE) varnished cloth anticorrosive coat with 0.1-0.3mm thickness is cut into strip-type; This band two ends overlap is polished with abrasive paper for metallograph, then wash airing with acetone; Add with the overlap joint hypotenuse isometricly at bonding layer place up and down, width is the special welding rod (polyvinylidene difluoride film hot melt adhesive) of 10mm; To the welding rod fusing, be cooled to room temperature by vulcanizing press hot pressing (190 ℃ of temperature) faying surface rapidly, the PTFE varnished cloth promptly is overlapped to form the annular astragal of certain diameter;
The bulked glass yarn weave cloth of d. will handle through silane coupler, polytetrafluoroethylene teflon soliquoid flooding, the graphite coating ternary is handled constitutes dust layer; Block glass wool or ceramic wool formation thermal-protective coating will be coated again between the layer glass fibre cloth; Equally also they are overlapped to form the annular astragal of certain diameter;
E. with above-mentioned FEC, polytetrafluoroethylene (PTFE) varnished cloth anticorrosive coat, thermal-protective coating with dust layer is coaxial connects together, its each lap joint position is staggered 90 ° mutually, constitutes the annular astragal that contains four layers of combination;
F. wide with two for 100mm carries out bound edge to combination astragal two ends respectively through ternary processing voluminous yarn glass cloth, and fix with glass fibre teflon suturing with thread management;
G. above-mentioned annular astragal finished product installation is connected on the metallic support flange that contains transition arc, with metal platen and bolt, and then the water conservancy diversion cover of burn-oning, promptly become at the multiple structural fibre of installing and using under the state and strengthen the duct made of elastomer compensator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200410017950 CN1285851C (en) | 2004-04-27 | 2004-04-27 | Sandwich construction fiber reinforced elastic body pipe compensator and forming method thereof |
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| CN 200410017950 CN1285851C (en) | 2004-04-27 | 2004-04-27 | Sandwich construction fiber reinforced elastic body pipe compensator and forming method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100390369C (en) * | 2006-04-19 | 2008-05-28 | 哈尔滨工业大学 | Fibre-reinforced plastic steel twisting-wire composite rib |
| CN101538774B (en) * | 2009-01-22 | 2011-02-02 | 厦门金纶科技有限公司 | Multilayer braided fabric and application thereof |
| CN102620100A (en) * | 2012-03-31 | 2012-08-01 | 南通三创机械制造有限公司 | Fully sealed type fiber expansion joint |
| CN104290425A (en) * | 2013-12-31 | 2015-01-21 | 陈尔凡 | Production method of strong anti-corrosion tape used for desulphurization device |
| CN105086174A (en) * | 2015-09-09 | 2015-11-25 | 苏州国泰科技发展有限公司 | High temperature resistant synthetic rubber |
| CN112973280A (en) * | 2021-02-05 | 2021-06-18 | 江苏九鼎新材料股份有限公司 | Method for manufacturing expanded glass fiber mesh cloth |
| CN113685641A (en) * | 2021-07-26 | 2021-11-23 | 国能龙源环保有限公司 | Desulfurization non-metal compensator seepage control method and non-metal compensator |
| CN114110289A (en) * | 2022-01-26 | 2022-03-01 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Large-compensation compact compensator |
-
2004
- 2004-04-27 CN CN 200410017950 patent/CN1285851C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100390369C (en) * | 2006-04-19 | 2008-05-28 | 哈尔滨工业大学 | Fibre-reinforced plastic steel twisting-wire composite rib |
| CN101538774B (en) * | 2009-01-22 | 2011-02-02 | 厦门金纶科技有限公司 | Multilayer braided fabric and application thereof |
| CN102620100A (en) * | 2012-03-31 | 2012-08-01 | 南通三创机械制造有限公司 | Fully sealed type fiber expansion joint |
| CN104290425A (en) * | 2013-12-31 | 2015-01-21 | 陈尔凡 | Production method of strong anti-corrosion tape used for desulphurization device |
| CN105086174A (en) * | 2015-09-09 | 2015-11-25 | 苏州国泰科技发展有限公司 | High temperature resistant synthetic rubber |
| CN112973280A (en) * | 2021-02-05 | 2021-06-18 | 江苏九鼎新材料股份有限公司 | Method for manufacturing expanded glass fiber mesh cloth |
| CN113685641A (en) * | 2021-07-26 | 2021-11-23 | 国能龙源环保有限公司 | Desulfurization non-metal compensator seepage control method and non-metal compensator |
| CN114110289A (en) * | 2022-01-26 | 2022-03-01 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Large-compensation compact compensator |
| CN114110289B (en) * | 2022-01-26 | 2022-04-29 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Large-compensation compact compensator |
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| Publication number | Publication date |
|---|---|
| CN1285851C (en) | 2006-11-22 |
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