CN201925210U - Anti-corrosive water circular type vacuum pump - Google Patents
Anti-corrosive water circular type vacuum pump Download PDFInfo
- Publication number
- CN201925210U CN201925210U CN201020698901XU CN201020698901U CN201925210U CN 201925210 U CN201925210 U CN 201925210U CN 201020698901X U CN201020698901X U CN 201020698901XU CN 201020698901 U CN201020698901 U CN 201020698901U CN 201925210 U CN201925210 U CN 201925210U
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- Prior art keywords
- vacuum pump
- pump
- type vacuum
- circular type
- water circular
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- Expired - Lifetime
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Abstract
The utility model provides an anti-corrosive water circular type vacuum pump, which belongs to the field of vacuum equipment and particularly relates to a water circular type vacuum pump. The water circular type vacuum pump comprises a pump body and a circular disc, and is characterized in that the working layers of the pump body and the circular disc are impregnated graphite anti-corrosive layers; metal housing protective layers are coated outside the working layers of the pump body and the circular disc. The water circular type vacuum pump can resist abrasion and corrosion; compared with a water circular type vacuum pump with a ceramic lining, the water circular type vacuum pump has high vacuum degree and large gas suction amount; compared with a water circular type vacuum pump which is made from nonmetallic material (plastic), the water circular type vacuum pump has high strength and remarkable performance, and is suitable for popularization.
Description
Technical field
The utility model belongs to the vacuum equipment field, is specifically related to a kind of Nash hytor.
Background technique
Nash hytor is the device that is used for aspirating with conveying gas, is widely used in vacuum in industries such as chemical industry, pharmacy, papermaking, building materials, plastics, weavings and carries, and the vacuum precipitation is in the technological processes such as negative pressure rectifying.In the process of using,, make shorten dramatically the working life of vacuum pump often because containing a large amount of corrosivity compositions in the gas that is sucked or carries causes badly damagedly to vacuum pump.
Several corrosion resistant Nash hytors are arranged in the market, its main corrosion protection means are for adding ceramic lined or using nonmetal (plastics) manufacturing etc., but in the using process of reality, there are many drawbacks, lower such as its degree of vacuum of vacuum pump and the rate of air sucked in required of adding ceramic lined, but not the intensity at each position such as its pump housing of vacuum pump that metal is made, impeller is lower etc., and using effect is difficult to satisfactory.
The model utility content
The technical problem that the utility model solved is: design a kind of corrosion resistant water ring formula vacuum pump, fine corrosion resistance.
The technological scheme that its technical problem that will solve the utility model adopts is: design a kind of corrosion resistant water ring formula vacuum pump; comprise the pump housing and disk; the working lining that it is characterized in that the pump housing and disk is the impregnated graphite wearing layer, and the working lining of the pump housing and disk is covered with the metal shell protective layer outward.
A kind of corrosion resistant water ring formula vacuum pump described in the utility model is characterized in that also comprising pump cover, impeller and pump shaft, on the working surface of pump cover, impeller and pump shaft teflon coatings is set.
The utility model also comprises machine envelope stuffing box, space nut and baffle plate, on the working surface of machine envelope stuffing box, space nut and baffle plate teflon coatings is set.
The beneficial effect that the utility model had is:
1. the working lining of the pump housing and disk is the impregnated graphite wearing layer, and the working lining of the pump housing and disk is covered with the metal shell protective layer outward, because resin impregnation graphite has following characteristic:
Chemical stability: the good chemical stability of tool under the normal temperature is not subjected to the corrosion of any strong acid, highly basic and organic solvent.Good thermal stability, expansion coefficient is little, can stand the temperature acute variation under the high temperature and do not destroy, and its Volume Changes is little.
Lubricity and workability: tool good lubricating property, its friction factor at lubricant medium less than 0.1.Scale is big more, and friction factor is more little, and greasy property is good more.Workability is strong, and the technology that is made into the pump housing and disk is simple, and processing cost is low, and is economical and practical.
Heat absorptivity and thermal diffusivity: the heat absorption capacity that tool is good, heat dispersion and metal are suitable.
Therefore; the utility model combines metal and impregnated graphite cleverly; the impregnated graphite wearing layer is that vacuum pump brings superior wear-resisting corrosion resistance, and metal shell protective layer protection impregnated graphite wearing layer, avoid its because of fragility very much not shock resistance cause damage.
2. on the working surface of pump cover, impeller, pump shaft, machine envelope stuffing box, space nut and baffle plate, teflon coatings is set, Teflon coating is to be the fluorine coating of matrix resin with the teflon, English name is Teflon, because the cause of pronunciation is referred to as Furtulon, the rich dragon of iron, Teflon, polytetrafluoroethylene or the like (being all the transliteration of Teflon) usually again.Teflon coating is a kind of unique high-performance coating; because material itself combines heat resistance, chemical inertness and excellent insulation stability and low frictional properties; therefore Teflon is corroded by medicine hardly, can protect part to avoid suffering the chemical corrosion of any kind of.This resin emulsion paint is the most tough and tensile fluoropolymer polymer, can form the durable protective layer of a layer height, has remarkable wear resistance, and can be 150 ℃ of following continuous operations.Therefore, on the working surface of pump cover, impeller, pump shaft, machine envelope stuffing box, space nut and baffle plate, teflon coatings is set, can effectively avoid vacuum pump when aspirating operation, corrosive gas be to the corrosion of these parts, working life that can the significant prolongation vacuum pump.
3. working surface of the present utility model is impregnated graphite or Teflon material, can tolerate washing away of the interior water ring of pump for a long time, wear rate is low, and the utility model is than the water ring vaccum pump degree of vacuum height of ceramic lined, rate of air sucked in required is big, Nash hytor intensity than nonmetal (plastics) is big, and performance is distinguished, very suitable popularizing.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Among the figure: 1. pump shaft, 2. machine envelope stuffing box, 3. pump cover, 4. disk, the 5. pump housing, 6. impeller, 7. baffle plate, nut 8. spaces.
Embodiment
A kind of corrosion resistant water ring formula vacuum pump described in the utility model; the working lining of the pump housing 5 and disk 4 (working lining described in the utility model or working surface; be contact with the gas that aspirates conveying layer or face) be the impregnated graphite wearing layer; the working lining of the pump housing 5 and disk 4 is covered with the metal shell protective layer outward; impregnated graphite and metal are combined; not only intensity satisfies usage requirement, and the working lining of impregnated graphite making, and is wear-resisting anticorrosive.
On the working surface of pump cover 3, impeller 6, pump shaft 1, machine envelope stuffing box 2, space nut 8 and baffle plate 7, teflon coatings is set, in the time of can effectively avoiding vacuum pump to aspirate operation, corrosive gas is to the corrosion of these parts, working life that can the significant prolongation vacuum pump.
The utility model has all carried out the wear-and corrosion-resistant processing with the working surface that may contact with the suction conveying gas in the vacuum pump, water ring vaccum pump degree of vacuum height than ceramic lined, rate of air sucked in required is big, intensity than the Nash hytor of nonmetal (plastics) is big, safe and reliable, economical and practical, very suitable popularization and industrialization volume production.
Other structures of the present utility model are identical with existing vacuum pump with working principle, do not repeat them here.It is to be noted; above-mentioned mode of execution only is the utility model preferred embodiment; for those skilled in the art, under the prerequisite that meets the utility model working principle, any be equal to or similar replacement all falls in the protection domain of the present utility model.
Claims (3)
1. a corrosion resistant water ring formula vacuum pump comprises the pump housing and disk, and the working lining that it is characterized in that the pump housing and disk is the impregnated graphite wearing layer, and the working lining of the pump housing and disk is covered with the metal shell protective layer outward.
2. a kind of corrosion resistant water ring formula vacuum pump according to claim 1 is characterized in that also comprising pump cover, impeller and pump shaft, on the working surface of pump cover, impeller and pump shaft teflon coatings is set.
3. a kind of corrosion resistant water ring formula vacuum pump according to claim 1 and 2 is characterized in that also comprising machine envelope stuffing box, space nut and baffle plate, on the working surface of machine envelope stuffing box, space nut and baffle plate teflon coatings is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020698901XU CN201925210U (en) | 2010-12-30 | 2010-12-30 | Anti-corrosive water circular type vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020698901XU CN201925210U (en) | 2010-12-30 | 2010-12-30 | Anti-corrosive water circular type vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201925210U true CN201925210U (en) | 2011-08-10 |
Family
ID=44429061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020698901XU Expired - Lifetime CN201925210U (en) | 2010-12-30 | 2010-12-30 | Anti-corrosive water circular type vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201925210U (en) |
-
2010
- 2010-12-30 CN CN201020698901XU patent/CN201925210U/en not_active Expired - Lifetime
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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: 20110810 |
|
| CX01 | Expiry of patent term |