CN204820525U - Be arranged in corrosion -resistant compound inside lining device of heterogeneous material fluid conveying equipment abrasionproof - Google Patents
Be arranged in corrosion -resistant compound inside lining device of heterogeneous material fluid conveying equipment abrasionproof Download PDFInfo
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- CN204820525U CN204820525U CN201520262317.2U CN201520262317U CN204820525U CN 204820525 U CN204820525 U CN 204820525U CN 201520262317 U CN201520262317 U CN 201520262317U CN 204820525 U CN204820525 U CN 204820525U
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- resistant
- conveying equipment
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Abstract
The utility model relates to a be arranged in corrosion -resistant compound inside lining device of heterogeneous material fluid conveying equipment abrasionproof, include as outer metal level, as the ceramic fibre in intermediate level with have the toughness of reinforcing inside lining device and bonding strength's a front cover as the inlayer, the front cover is the mixture of organic, inorganic modified polymer and little nano -ceramics combination formation. The utility model has the characteristics of stand wear and tear and corrosion -resistant, prevent scale deposit etc.
Description
Technical field
The utility model relates to a kind of inner lining apparatus for the corrosion-resistant working face of multi-phase material conveying equipment for fluid substances abrasionproof, be specially adapted to the protection of coal-fired power plant's coal dust, ash, the pipeline of slag, pump and blower fan conveying equipment, be also applicable to the protection at high corrosive wear working condition lower liner of the gas of power plant desulphurization system, solid, liquid heterogeneous slurry material conveying pipe and the tankage such as pump, bunker.
Background technology
Corrosive wear is that chemistry or electrochemical reaction and appear at material leakage on the surface also occur with surrounding medium metal material bearing frictional force while, it comprises corrosive wear, the caustic slurry erosion of friction pair, the type such as cavitation erosion in the erosion in high temperature corrosion gas and corrosive liquid stream.These failure modes of material often occur in pump, the flow passage components of valve, bunker container and inner-walls of duct face, and the destruction that in the friction pair of being on active service in corrosive medium, (sealing ring, reducer pipe, bend pipe) wherein causes with two-phase flow is especially serious.
At present, China's power generation is mainly based on coal fired power generation, and the heat energy of coal burning gained is converted to mechanical energy by suitable dynamic power machine by coal-fired power plant, then mechanical energy is converted to the generation mode of electric energy by generator.The technological process of production of coal-burning power plant's generating makes coal dust by after coal crushing through powder manufacturing apparatus, by coal powder fan acting, coal dust inputted apparatus for separating fine powder from coarst powder and is separated, and the qualified coal dust separated sends into boiler combustion.Ashes after burning and slag again by air pressure input electric dust-removing equipment collection storage, and contain SO
2and NO
xdusty gas and part dust then carry out chemical conversion and sedimentation through the device such as flue gas desulfurization, denitration and are eliminated.
Coal dust, ash, slag and SO in whole technical process
2, NO
xtransmitting power equipment Deng material has the equipment such as blower fan, pump and helical pipe conveyer, the equipment such as coal powder fan, slush pump carry material coal dust, ashes and lime-ash, mortar certainly will to equipment cause corrosion and wearing and tearing.Its abrasion and corrosion degree and dust granules diameter and gangue content, the quality of material such as sulfur oxide content are relevant.Pipeline is the tie of coal-fired power plant's technological process of production.Pipeline of power plant convey materials refers to chemical corrosivity mixed serum etc. in coal ash powder, lime-ash and flue gas desulfurization, denitrification process, gas, solid, liquid three-phase fluid or gas, solid two-phase fluid conveying is belonged to owing to being transferred material, the material of equipment conveying often coexists with corrosion and wearing and tearing, and the service life of equipment especially run under hot environment operating mode is very limited.
Burn into wearing and tearing and fatigue fracture are that equipment and materials in use causes three of disabler large main causes, and first the condition that corrosive wear occurs is there is corrosive medium, and next is only (friction) surface of relative motion.But in actual condition environment, they are simultaneously the accelerating the failure and lost efficacy of participation device material often.
The conveying equipments such as coal-fired power plant's blower fan, pump, pipeline not only cause the increase of maintenance load and maintenance cost because of erosion corrosion initial failure, but also affect the safety and economic operation in power plant.
At present, the composite that the protective materials used in the corrosion-resistant field of abrasionproof both at home and abroad has metal material, nonmetallic materials or is made up of bi-material.Owing to running under the complex working condition environmental conditions such as mechanical wear, chemical attack medium and corrosive gas, the service life of equipment is very limited, therefore researching and developing conveying, storage corrosion is also the frontline technology that current new material is developed with the equipment composite material as liner of the heterogeneous fluid material coexisted that weares and teares, also be a large key of abrasionproof resistant material art innovation, there are very significant economic results in society.
Early stage Flue Gas Desulphurization for Coal-burning Power Plant abrasionproof anticorrosion pipeline and tankage adopt low-carbon (LC) and ultra-low carbon austenitic stainless steel, as 316 (00Cr17Ni14Mo3) or 317 (0Cr18Ni12MoTi) stainless steel.This kind of stainless steel has good decay resistance for oxide isolation.But in actual applications, find that there is the phenomenons such as spot corrosion, crevice corrosion and erosive wear.
Titanium alloy is excellent corrosion-resistant anti-friction material, is applied on the pipeline of flue gas system and container and all shows good abrasionproof decay resistance, but expensive.
The effect of nickel-base alloy is ideal, but expensive.
At present, Ye You power plant adopts glass-cermic composite and wear-resistant white wear resistant cast iron composite to make pipeline and container, and shortcoming is that weight is large, property is crisp, is not suitable for the large hygrometric state operating mode of corrosivity and runs.
The Ceramic Composite pipeline adopting aluminothermic process and mounting method to manufacture and container, anti-wear performance is very good.Its shortcoming is that liner fragility is split greatly, easily, occurs that the probability of quality accident is higher in use procedure, if slightly quality is out of control in construction technological process, potsherd can be caused to come off.
In prior art, during the multi-phase materials such as liquid-solid, the gas-solid that conveying has corrosive medium to exist, the pipeline that general employing composite rubber-plastic material is made or container, it had both maintained the intensity of steel structure body, had played again the decay resistance of rubber and plastic, and cheap.Shortcoming is that liner ageing resistance is poor, and bond strength is low, not organic solvent-resistant, and part plastic cement has water imbibition, and field repair difficult quality controls.
In sum, each coal-fired power plant apply now mass transport and bunkerage exist homogenous material make or compound do not possess the environment that wear resistant corrosion resistant and inner wall device fouling coexist under run, especially at high temperature, heterogeneous (vapour, solid, liquid), under high concentration material conveying work condition environment, service life is extremely short, and maintenance has frequently had a strong impact on power plant safety, economy, Effec-tive Function and environmental pollution.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of for the corrosion-resistant compound lining device of abrasionproof in multi-phase material conveying equipment for fluid substances.
Realize the technical solution of the utility model as follows:
A kind of for the corrosion-resistant compound lining device of abrasionproof in multi-phase material conveying equipment for fluid substances, comprise as outer field metal level, as the ceramic fibre in intermediate layer with strengthen the toughness of inner lining apparatus and the front cover of bond strength as having of internal layer, described front cover is the mixture that organic and inorganic polymer-modified and micro-nano Ceramic bond is formed.
Described ceramic fibre is provided with wear-resistant corrosion-resistant matrix, the entirety that the as a whole or multiple base unit of described matrix is connected to form, advantage be improve material high-wearing feature and toughness, can also bearing temperature have change, ensure not cracked in the work condition environment that intermediate layer is washed away strongly at high temperature material, gas, do not fall block and do not peel off.
This matrix is solid ceramic.
Also be provided with butyl layers between described front cover and ceramic fibre, advantage to make front cover and ceramic fibre perfection merge, and improves the fastness of its structure.
Described metal level is that material is made with steel.
Have employed above-mentioned scheme, common chip ceramic composite due to the technical process temperature difference different with thermal coefficient of expansion, the ceramic layer crackle of product is many, pore is many can not resist soaking into of Korrosionsmedium and gas, casting and built-up welding composite cannot the constructions in large area and particular job face at the scene, and there is the problem such as defective workmanship and intergranular gaseous corrosion equally in the material of metallurgical compound, for above-mentioned defect, adopt in modified ultra-high molecular resin and micro-nano pottery and blend inner lining surface engineering technique, mixed and modified polymer-ceramic slurries are fully infiltrated in substrate pore and gap, make working face crackle, pore and faying face defect completely closed, for two-phase stainless steel matrix impeller, the honeycomb cavitation erosion hole of pump case equipment also implants ceramic fibre or stainless steel wire skeleton to increase toughness and bond strength, form the set composite of one deck without materials such as permeation of modified organic/inorganic polymer-micro nano structure pottery-butyl rubbers, thus make equipment acquisition one have wear-resistant and corrosion-resistant, the NEW TYPE OF COMPOSITE inner lining apparatus of the multi-functionals such as good antiscale property.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the second embodiment;
Fig. 3 is the third embodiment;
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
Embodiment 1, as Fig. 1, a kind of for the corrosion-resistant compound lining device of abrasionproof in multi-phase material conveying equipment for fluid substances, comprise as outer field metal level 3, as the ceramic fibre 2 in intermediate layer with strengthen the toughness of inner lining apparatus and the front cover 1 of bond strength as having of internal layer, metal level 3 is steel or steel alloy, ceramic fibre 2 is provided with wear-resistant corrosion-resistant solid ceramic matrix 21, this matrix is as a whole, and described front cover 1 is the mixture that organic and inorganic polymer-modified and micro-nano Ceramic bond is formed.
Embodiment 2, as Fig. 2, is also provided with butyl layers 4 between described front cover 1 and ceramic fibre 2, and advantage to make front cover and ceramic fibre perfection merge, and improves the fastness of its structure.
Embodiment 3, as Fig. 3, described matrix 21 is the entirety that multiple base unit 22 is connected to form, advantage be improve material high-wearing feature and toughness, can also bearing temperature have change, ensure not cracked in the work condition environment that intermediate layer is washed away strongly at high temperature material, gas, do not fall block and do not peel off.
The utility model has following performance:
Heavy for macromolecule reactive polymeric thing and ceramic material and steel alloy are combined as the corrosion-resistant basis of abrasionproof and form the compound lining device be made of a variety of materials.The environment that this device runs according to equipment actual condition and condition, through particular design, for protection with repair impaired metal and nonmetal equipment and there is anti-wear corrosion resistant effect.After the solidification of this inner lining apparatus, for ensureing that installation accuracy can carry out grinding.
Be suitable for various inorganic acid, alkali, salt, partial organic substances, the conveying of various powder, particle suspension liquid or storage.
Applying working condition temperature: can use continuously at 135 DEG C in dry environment, reinforced polymeric material can use continuously in 260 DEG C ~ 380 DEG C environment.In wet condition, can use in-30 DEG C ~ 180 DEG C work condition environments;
Use pressure: 0.1 ~ 16MPa;
Liner density: 3.65 ~ 6.27g/cm
3;
Liner coefficient of friction: 0.04
Liner and steel matrix bond strength >=more than 10MPa, can at Long-Time Service under vaccum working condition.
Adopt this compound lining device make in contrast the compound linings such as conventional lining rubber and plastic, aluminothermic process pottery, chip ceramic and compare, have the following advantages:
1. the coefficient of expansion 8.7 × 10
-6/ DEG C thermal coefficient of expansion 11 × 10 outer with base steel
-6/ DEG C being more or less the same, both physical properties couplings, under the effect of operating mode alternating temperature-changing, liner not air-blowing, collapse flat, fold, and flange flange place does not ftracture.
2. compound lining product has special erosion resistant, resistance to chemical corrosion, anti-aging and superior hydraulic performance, tensile strength 160MPa ~ 260MPa; It is heat and electric insulator still.This is not only the protective material of a kind of anti-wear, corrosion and cavitation erosion, also can be used for repairing repair and the various defect pipelines equipment abrasionproof such as process burn into cavitation erosion, corrosion, erosion, mechanical wear, distortion, crackle, hole, seepage, corrosion-resistant working face desirable inner lining apparatus material.
Claims (5)
1. one kind for the corrosion-resistant compound lining device of abrasionproof in multi-phase material conveying equipment for fluid substances, it is characterized in that: comprise as outer field metal level, as the ceramic fibre in intermediate layer with strengthen the toughness of inner lining apparatus and the front cover of bond strength as having of internal layer, described front cover comprises organic, inorganic modified polymer and micro-nano pottery.
2. one according to claim 1 is used for the corrosion-resistant compound lining device of abrasionproof in multi-phase material conveying equipment for fluid substances, it is characterized in that: described ceramic fibre is provided with wear-resistant corrosion-resistant matrix, the entirety that the as a whole or multiple base unit of described matrix is connected to form.
3. one according to claim 2 is used for the corrosion-resistant compound lining device of abrasionproof in multi-phase material conveying equipment for fluid substances, it is characterized in that: this matrix is solid ceramic.
4. one according to claim 1 and 2 is used for the corrosion-resistant compound lining device of abrasionproof in multi-phase material conveying equipment for fluid substances, it is characterized in that: be also provided with butyl layers between described front cover and ceramic fibre.
5. one according to claim 1 is used for the corrosion-resistant compound lining device of abrasionproof in multi-phase material conveying equipment for fluid substances, it is characterized in that: described metal level is that material is made with steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520262317.2U CN204820525U (en) | 2015-04-27 | 2015-04-27 | Be arranged in corrosion -resistant compound inside lining device of heterogeneous material fluid conveying equipment abrasionproof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520262317.2U CN204820525U (en) | 2015-04-27 | 2015-04-27 | Be arranged in corrosion -resistant compound inside lining device of heterogeneous material fluid conveying equipment abrasionproof |
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| Publication Number | Publication Date |
|---|---|
| CN204820525U true CN204820525U (en) | 2015-12-02 |
Family
ID=54678161
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520262317.2U Expired - Fee Related CN204820525U (en) | 2015-04-27 | 2015-04-27 | Be arranged in corrosion -resistant compound inside lining device of heterogeneous material fluid conveying equipment abrasionproof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110923607A (en) * | 2019-12-27 | 2020-03-27 | 上海英佛曼纳米科技股份有限公司 | Cold rolling loop roller with wear-resistant and roughness-reduction-resistant nano coating |
-
2015
- 2015-04-27 CN CN201520262317.2U patent/CN204820525U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110923607A (en) * | 2019-12-27 | 2020-03-27 | 上海英佛曼纳米科技股份有限公司 | Cold rolling loop roller with wear-resistant and roughness-reduction-resistant nano coating |
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| 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: 20151202 Termination date: 20180427 |