CN201934808U - Double material composite abrasion resistant pipe - Google Patents
Double material composite abrasion resistant pipe Download PDFInfo
- Publication number
- CN201934808U CN201934808U CN2010206128839U CN201020612883U CN201934808U CN 201934808 U CN201934808 U CN 201934808U CN 2010206128839 U CN2010206128839 U CN 2010206128839U CN 201020612883 U CN201020612883 U CN 201020612883U CN 201934808 U CN201934808 U CN 201934808U
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- composite
- resistant
- wear
- metal ring
- composite wear
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Abstract
The utility model discloses a double material composite abrasion resistant pipe, which comprises a metal base pipe having a nonmetallic composite layer disposed on the inner surface by high temperature sintering; two ends of the metal base pipe are provided with metal ring ends; the inner diameter of the metal ring end is equal to that of the nonmetallic composite layer. In the double material composite abrasion resistant pipe of the utility model, the metal ring ends on both ends of the pipe inner wall provide a composite coefficient of a short pipe inner wall ceramic composite layer and a short pipe inner wall, effectively protect the ceramic composite layer on the inner wall from the impact of oil and steam; meets the requirements of special-purpose tool assembling, and widens the application field of the product.
Description
Technical field
The utility model relates to a kind of two composite wear-resistant tubes.
Background technique
Existing composite wear-resistant tube is based on the ceramic composite pipe of producing on the epidemic techniques basis, owing to be subjected to that the narrow limitation of technology is this an improved problem of following need from spreading:
1. the length of composite wear-resistant tube and diameter are restricted, and the length of the composite wear-resistant tube of this technology can only accomplish that generally diameter generally is up to about 250mm about 400mm in actual production.
2. composite wear-resistant tube is owing to the reason that spreads technology certainly, composite bed and base course crack problem all take place or have fine crack in its end easily, in actual applications in a short period of time will the wearing and tearing of medium with impact under cracking takes place or part comes off, influence the reliability and the working life of composite wear-resistant tube.
3, composite wear-resistant tube is owing to all being multiple layer and basic unit along arbitrary section on the tube's axis, and institute comprises so that this pipe can't connect: welding reliably, the flange connection is threaded etc.
The model utility content
At the problem that prior art exists, the purpose of this utility model is to provide a kind of structure through improving, improved two composite wear-resistant tubes of its wear resistance and ease of use.
For achieving the above object, two composite wear-resistant tubes of the utility model comprise the metal parent tube, and high temperature sintering is provided with nonmetal composite bed on its internal surface, the two ends of metal parent tube are provided with the metal ring termination, and the internal diameter of this metal ring termination is identical with the internal diameter of nonmetal composite bed.
Further, described metal parent tube and metal ring termination are made into integration.
Further, the length of described metal ring termination is 8～15mm.
Further, the connecting part of described metal parent tube and metal ring termination is provided with the vector sintering guiding conical surface.
Further, described nonmetal composite bed is the nonmetallic ceramics layer, is preferably the corundum ceramic layer.
Further, the thickness of described nonmetallic ceramics layer is 1.5～4.5mm.
Two composite wear-resistant tubes of the utility model, the recombination coefficient of short tube internal wall ceramic composite bed and short tube inwall has been improved in the metal ring termination at inner tube wall two ends, effectively protected the impact of oil, vapour, satisfied extraordinary frock matching requirements, widened product and used the field the inwall ceramic thin film.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model user mode structural representation.
Embodiment
As shown in Figure 1 and Figure 2, two composite wear-resistant tubes of the utility model comprise metal parent tube 1, and high temperature sintering is provided with nonmetal composite bed 2 on its internal surface, the two ends of metal parent tube 1 are provided with metal ring termination 3, and the internal diameter of metal ring termination 3 is identical with the internal diameter of nonmetal composite bed 2.Metal ring termination 3 can adopt the mode of welding to be fixed on the metal parent tube 1, perhaps adopts metal parent tube 1 and metal ring termination 3 to be made into integration.In the present embodiment, metal parent tube 1 adopts integrally casting to make with metal ring termination 3, has advantages such as cost is low, operation is simple.
In the present embodiment, the length of metal ring termination is 8～15mm; The thickness of nonmetallic ceramics layer is between the 1.5-4.5mm.Because adopt spinning high temperature sintering technology, thereby the maximum manufacturing diameter of two composite wear-resistant tubes of the utility model is reached about 550mm, length reaches about 2000mm.Nonmetal composite bed 2 is the nonmetallic ceramics layer, is preferably the corundum ceramic layer.As shown in Figure 2, metal ring termination 3 is set by two ends at metal parent tube 1, thereby many two composite wear-resistant tubes can be adopted modes such as welding, flange 5, quick spiral marking connection or even quick-acting joint connect, the facility of more Scheme Choice and manufacturing, construction is provided to design and construction.For nonmetal composite bed 2 can be combined by tight burning with metal ring termination 3, and sintering defective and hidden danger of quality do not appear, inner surface in metal parent tube 1 and the connecting part of metal ring termination 3 is provided with the vector sintering guiding conical surface 4, to reach manufacture process requirement.
Two composite wear-resistant tubes of the utility model adopt a kind of spinning high temperature sintering technology to make, the nonmetallic ceramics layer is to form fine and close corundum ceramic layer at the high temperature more than 2200 ℃, and under certain pressure, form firm combining with basic unit's steel pipe internal-surface of handling through special process.Two composite wear-resistant tubes have the intensity height, and good toughness is shock-resistant, wear-resisting, corrosion resistant characteristics.Can carry oil gas under the flow field of complicated high temperature such as big change in pressure drop, granule materials, and Korrosionsmedium are a kind of reliable wear-resisting pipes.
Two composite wear-resistant tubes of the utility model are with traditional steel pipe, wear-resistant alloy cast steel pipe, glass-ceramic tubre and steel is moulded, steel rubber pipe etc. has internal to distinguish.Two complex abrasion-proof outer tube layers of the utility model are steel pipes, and internal layer is the corundum ceramic layer.Corundum ceramic layer Vickers hardness is equivalent to tungsten-cobalt alloy up to 100-1500 (Rockwell hardness is 90-98).Wear resistance is higher more than 20 times than carbon steel tube.It mainly is the corundum ceramic layer of a little millimeters thick of inner layer that two composite wear-resistant tubes of the utility model resistance to wear, and its Mohs hardness is 9, is only second to diamond and silicon carbide, and in all oxides, its hardness is the highest
Because two composite wear-resistant tubes of the utility model have wear-resisting, anti-corrosion, resistance to heat, therefore can be widely used in industries such as electric power, metallurgy, mine, coal, chemical industry as carrying sand, stone, coal dust, lime-ash, aluminium liquid, grindability granule materials and Korrosionsmediums such as solid granulates shape catalyzer are a kind of desirable wear-corrosion resistance pipelines.It can use following field:
(1) mine: filling in mine, fine ore and mine tailing transport the serious wear to pipeline, and changed this pipe and can make life-span improve about 8 times less than 1 year breeze conveyance conduit working life of in the past adopting.
(2) coal: the defeated coal of coal separation and long-distance pipe generally adopts wet method to carry, and requires delivery pipe not only wear-resisting but also anti-corrosion, adopts this pipe to can be used as long-lived delivery pipe.
(3) oil refining, refinery: two composite wear-resistant tubes can (high temperature, high pressure, high wearing and tearing, deep-etching) be used to carry gas under complex working condition, Gu liquid is three mixed mediums; Can be used for making critical component in the refinery device as big pressure drop, high flow capacity, the material reaction nozzle of galling; Step-down, the speed limit nozzle; The step-down orifice plate; Catalyst reaction distribution bed etc.Can effectively ensure the long-term operation of refinery device.
Two composite wear-resistant tubes of the utility model have the following advantages:
1, wear resistance is good
Two composite wear-resistant tubes are because interior multiple layer is corundum ceramic (a-AL2O3), and Mohs hardness can reach 9.0 and be equivalent to more than the HRC90.Therefore to metallurgy, electric power, mine, coal, the grindability medium that industries such as petrochemical industry are carried all has high wear resistance.
2, pressure drop is little
Two composite wear-resistant tubes are owing to the smooth and not corrosion of internal surface, and its inside surface roughness and clear water drag characteristic are better than any metallic conduit, and the clear water resistance coefficient is 0.0193, and is lower slightly than seamless steel pipe.In practical application in industry, help to reduce system's overall presure drop, thereby, can both play a role the optimal design of device and saving energy and reduce the cost of system.
3, corrosion-resistant, good antiscale property
Because two composite wear-resistant tube ceramic layers are (a-AL2O3), belong to neutral speciality.Therefore have acid resistant alkali and seawater corrosion resistance, and have characteristic such as antiscale simultaneously.
4, heat resistance and heat-resisting good towards the narrow-necked earthen jar performance
Because two the multiple layer of composite wear-resistant tube corundum ceramic (a-AL2O3) are the crystalline state tissue of single stable.Therefore composite pipe can be in long-term normal operation in the-50--700 ℃ temperature range.Line of material expansion coefficient 6-8 * 10-6/0C is about about 1/2 of steel pipe.Material has good thermostability.
5, installation is convenient
Two composite wear-resistant tube two-port are the single metal item about 8～15mm, therefore two composite wear-resistant tubes can adopt modes such as welding, flange, quick spiral marking connection or even quick-acting joint to connect, provide more Scheme Choice and manufacturing, the facility of construction therefore for the device design and construction.
Make, check, check and accept and quality control:
1. two composite wear-resistant tube composite ceramic layer internal surfaces should be smooth, do not allow load mould, crackle, defectives such as depression.
2. two composite wear-resistant tubes require high temperature resistant 800-1000 ℃ and oxidative stability, and shaking property of heat is not less than 10 times, does not produce any crackle.
3. two composite wear-resistant tube ceramic layer density:＞3.8/cm3.
4. two composite wear-resistant tube ceramic layer Vickers hardness: 1065-1500HV.
5. ceramic layer crushing strength: 335MPA.
6. ceramic layer corrosion resistance: 10%HCL solution, 0.092g/m2h
10%H2SO4 solution, 0.133g/m2h;
30%CH3COOH solution, 0.025g/m2h;
30%NaOH solution, 0.087g/m2h
7. ceramic layer and basic unit's adhesive strength: 36.6MPA.
8. resistance to thermal shocks: through 810 ± 5 ℃, ceramic layer does not have cracking and obscission behind 10 anti-thermal cyclings.
Claims (7)
1. two composite wear-resistant tubes, it is characterized in that this pair item composite wear-resistant tube comprises the metal parent tube, high temperature sintering is provided with nonmetal composite bed on its internal surface, the two ends of metal parent tube are provided with the metal ring termination, and the internal diameter of this metal ring termination is identical with the internal diameter of nonmetal composite bed.
2. two composite wear-resistant tubes as claimed in claim 1 is characterized in that described metal parent tube and metal ring termination are made into integration.
3. two composite wear-resistant tubes as claimed in claim 2 is characterized in that the length of described metal ring termination is 8～15mm.
4. two composite wear-resistant tubes as claimed in claim 3 is characterized in that, the connecting part of described metal parent tube and metal ring termination is provided with the vector sintering guiding conical surface.
5. two composite wear-resistant tubes as claimed in claim 1 is characterized in that described nonmetal composite bed is the nonmetallic ceramics layer.
6. two composite wear-resistant tubes as claimed in claim 5 is characterized in that described nonmetal composite bed is the corundum ceramic layer.
7. two composite wear-resistant tubes as claimed in claim 5 is characterized in that the thickness of described nonmetallic ceramics layer is 1.5～4.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206128839U CN201934808U (en) | 2010-11-18 | 2010-11-18 | Double material composite abrasion resistant pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206128839U CN201934808U (en) | 2010-11-18 | 2010-11-18 | Double material composite abrasion resistant pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934808U true CN201934808U (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206128839U Expired - Lifetime CN201934808U (en) | 2010-11-18 | 2010-11-18 | Double material composite abrasion resistant pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934808U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968159A (en) * | 2013-01-31 | 2014-08-06 | 天源环保有限公司 | Special environment-friendly wear-resisting pipe |
| WO2015184716A1 (en) * | 2014-06-06 | 2015-12-10 | 洪磊 | High-pressure-resistant integrated leakage-free rotating compensator |
-
2010
- 2010-11-18 CN CN2010206128839U patent/CN201934808U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968159A (en) * | 2013-01-31 | 2014-08-06 | 天源环保有限公司 | Special environment-friendly wear-resisting pipe |
| WO2015184716A1 (en) * | 2014-06-06 | 2015-12-10 | 洪磊 | High-pressure-resistant integrated leakage-free rotating compensator |
| US10203056B2 (en) | 2014-06-06 | 2019-02-12 | Jiangsu Beite Pipe Fittings Co., Ltd. | High-pressure tolerant integrated leakage-proof sleeve compensator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |
|
| CX01 | Expiry of patent term |