CN202280962U - Valve pipe orifice wear-resisting pipe for black water flash drum in coal chemical industry - Google Patents
Valve pipe orifice wear-resisting pipe for black water flash drum in coal chemical industry Download PDFInfo
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- CN202280962U CN202280962U CN2011203178686U CN201120317868U CN202280962U CN 202280962 U CN202280962 U CN 202280962U CN 2011203178686 U CN2011203178686 U CN 2011203178686U CN 201120317868 U CN201120317868 U CN 201120317868U CN 202280962 U CN202280962 U CN 202280962U
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- pipe
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- chemical industry
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- black water
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Abstract
The utility model relates to a valve pipe orifice wear-resisting pipe for a black water flash drum in the coal chemical industry. The valve pipe orifice wear-resisting pipe comprises a hard alloy outer layer, wherein the inner wall of the hard alloy outer layer is provided with a cavitation corrosion resistant layer; and the thickness of the hard alloy outer layer and the thickness of the cavitation corrosion resistant layer are both 10 mm. The valve pipe orifice wear-resisting pipe provided by the utility model is of a two-layer structure, the outer layer is a hard alloy layer, the inner layer is a cavitation corrosion resistant layer, and three problems of abrasion, erosion and cavitation corrosion of a pipeline can be solved very well; and the wear-resisting pipe has the advantages of low price, simple structure, and long service life.
Description
Technical field
The utility model relates to the wear-resisting pipe of a kind of Coal Chemical Industry black water flash tank valve mouth of pipe.
Background technique
On the Coal Chemical Industry black water flash tank valve mouth of pipe, often to use conveyance conduit at present; The medium that in conveyance conduit, transports mainly is Heisui River, owing to contain solid particle in the Heisui River, particle diameter is smaller or equal to 63 microns; Particle mainly comprises coal dust, slag particle, and PH 6 is subacidity; The hardness 2.5-3.5 of coal dust, slag particle hardness is 6.0; And Heisui River pressure is upstream pressure 4.0MPa (g); Normal pressure behind the valve, temperature are preceding 215 ℃ of flash distillation, after the flash distillation 95 ℃; Abrasion place velocity of medium is greater than 600m/s; High-velocity flow erosive wear conveyance conduit behind abrasion place caliber and the reduction valve, the conveyance conduit loss is very fast, and its loss factor is mainly: wearing and tearing, burn into cavitation erosion.Existing conveyance conduit adopts stainless steel or cemented carbide, and the stainless steel material abrasion resistance properties is poor, and the 10 day time of stainless steel that 10mm is thick is just worn out; Cause to produce and stop work; Cemented carbide hardness is high, but a little less than the anti-cavitation erosion ability, and the cost cost is high; The cemented carbide that 20mm is thick also only has 60 days working life, brings great inconvenience to enterprise production.
The model utility content
For solving the problems of the technologies described above, the utility model provides a kind of wear-resisting pipe of the Coal Chemical Industry black water flash tank valve mouth of pipe of simple in structure, long service life.
The wear-resisting pipe of the Coal Chemical Industry black water flash tank valve mouth of pipe of the utility model comprises that cemented carbide is outer, and the outer field inwall of said cemented carbide is provided with anti-cavitation layer.
The wear-resisting pipe of the Coal Chemical Industry black water flash tank valve mouth of pipe of the utility model, said cemented carbide thickness outer and anti-cavitation layer is 10mm.
Compared with prior art the beneficial effect of the utility model is: the wear-resisting pipe of the Coal Chemical Industry black water flash tank valve mouth of pipe of the utility model adopts double layer construction; Skin is a hard alloy layer; Internal layer is anti-cavitation layer, can be good at solving pipe wear, three kinds of problems of burn into cavitation erosion, and price is low; Simple in structure, long service life.
Description of drawings
Fig. 1 is the structural representation of the wear-resisting pipe of the described Coal Chemical Industry black water flash of the utility model embodiment tank valve mouth of pipe.
Among the figure:
1, cemented carbide is outer; 2, anti-cavitation layer.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the embodiment of the utility model is described in further detail.Following examples are used to explain the utility model, but are not used for limiting the scope of the utility model.
As shown in Figure 1, the wear-resisting pipe of a kind of Coal Chemical Industry black water flash tank valve mouth of pipe comprises cemented carbide skin 1, and the inwall of said cemented carbide outer 1 is provided with anti-cavitation layer 2.
The wear-resisting pipe of the Coal Chemical Industry black water flash tank valve mouth of pipe of the utility model, the thickness of said cemented carbide outer 1 and anti-cavitation layer 2 is 10mm.
The wear-resisting pipe of the Coal Chemical Industry black water flash tank valve mouth of pipe of the utility model adopts double layer construction, and skin is a hard alloy layer, and internal layer is anti-cavitation layer; Can be good at solving pipe wear, three kinds of problems of burn into cavitation erosion; And price is low, and is simple in structure, long service life.
The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and modification, these improvement and modification also should be regarded as the protection domain of the utility model.
Claims (2)
1. the wear-resisting pipe of the Coal Chemical Industry black water flash tank valve mouth of pipe comprises cemented carbide outer (1), it is characterized in that: the inwall of said cemented carbide outer (1) is provided with anti-cavitation layer (2).
2. the wear-resisting pipe of the Coal Chemical Industry black water flash tank valve mouth of pipe according to claim 1 is characterized in that: the thickness of said cemented carbide outer (1) and anti-cavitation layer (2) is 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203178686U CN202280962U (en) | 2011-08-29 | 2011-08-29 | Valve pipe orifice wear-resisting pipe for black water flash drum in coal chemical industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203178686U CN202280962U (en) | 2011-08-29 | 2011-08-29 | Valve pipe orifice wear-resisting pipe for black water flash drum in coal chemical industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202280962U true CN202280962U (en) | 2012-06-20 |
Family
ID=46227130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203178686U Expired - Fee Related CN202280962U (en) | 2011-08-29 | 2011-08-29 | Valve pipe orifice wear-resisting pipe for black water flash drum in coal chemical industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202280962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006257A (en) * | 2014-06-05 | 2014-08-27 | 石家庄三环阀门股份有限公司 | Chloride ion corrosion-resistant expansion joint and manufacturing technique for corrugated pipe of expansion joint |
-
2011
- 2011-08-29 CN CN2011203178686U patent/CN202280962U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006257A (en) * | 2014-06-05 | 2014-08-27 | 石家庄三环阀门股份有限公司 | Chloride ion corrosion-resistant expansion joint and manufacturing technique for corrugated pipe of expansion joint |
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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 |
Granted publication date: 20120620 Termination date: 20150829 |
|
| EXPY | Termination of patent right or utility model |