CN1062674A - Negative pressure-resisting corrosion-resisting lining - Google Patents
Negative pressure-resisting corrosion-resisting lining Download PDFInfo
- Publication number
- CN1062674A CN1062674A CN 90109804 CN90109804A CN1062674A CN 1062674 A CN1062674 A CN 1062674A CN 90109804 CN90109804 CN 90109804 CN 90109804 A CN90109804 A CN 90109804A CN 1062674 A CN1062674 A CN 1062674A
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- China
- Prior art keywords
- negative pressure
- chuck
- housing
- resisting
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Laminated Bodies (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The present invention relates to the corrosion protective lining product of anti-negative pressure, comprise housing 2 and backing layer 1, it is characterized in that housing has a plurality of through holes 6, be added with chuck 3 in the outside of perforated shell, leave cavity 5 between chuck and the housing, cavity 5 and hole 6 communicate, the mouth 4 of bleeding on the chuck.By vacuum extractor, make the chuck inner chamber remain high vacuum state, thereby make the backing layer that is in the negative pressure duty cavity with respect to high-true, be in barotropic state, and be attached to tightly on the housing, flat in unlikely the suction.The present invention can act on main equipment, pipeline and accessory, Venturi tube and various unit operating equipments such as the tower, still, jar, groove of high negative pressure.
Description
The present invention relates to the corrosion protective lining product of ability negative pressure.
At industrial departments such as chemical industry, oil refining, light industry, metallurgy, the etching problem of producing equipment is very outstanding.A kind of way that addresses this problem is to use resistant material, and for example polytetrafluoroethylene (PTFE) is made the straticulation lining, is enclosed within the housing made from iron and steel or other material, becomes the product of band corrosion protective lining.This product has both corrosion-resistant and withstand voltage premium properties.But have the not defective of anti-negative pressure, product size is big more, and operating temperature is high more, and this defective is just obvious more.Thereby produce the occasion of negative pressure state in negative-pressure operation or misoperation, and often cause backing layer flat in being inhaled, cause device interior to stop up, destroy ordinary production.
The object of the invention is to provide a kind of corrosion protective lining product that can anti-negative pressure, makes it in negative pressure, especially operate as normal under the high negative pressure duty.
Solution of the present invention is to open many holes on the housing of corrosion protective lining product, outside housing, add between chuck And and chuck and the housing and leave cavity, by vacuum extractor or automatic control negative pressure adjusting device, make the chuck inner chamber remain stable high vacuum state, each one of backing layer is inhaled firmly by each hole be attached on the perforated shell, and can not inhaled flat by the negative-pressure operation of inside.
Based on above-mentioned design, the invention provides following examples ， And in conjunction with the embodiments and accompanying drawing summary of the invention is described in detail.
Fig. 1 is the structural representation of an embodiment of the present invention.
This corrosion protective lining product comprises housing 2 and backing layer 1, and backing layer can be made of general anti-corrosion engineering plastics such as fluoro-containing plastics such as polytetrafluoroethylene (PTFE), polypropylene or other anti-corrosion nonmetal and metal material.It is characterized in that housing 2 has a plurality of through holes 6, be added with chuck 3 in the outside of perforated shell, leave cavity 5 between chuck and the housing, cavity 5 and hole 6 communicate, the mouth 4 of bleeding on the chuck.Housing is made by stephanoporate steel plate or other sturdy material, is advisable with the 0.1-100 millimeter in the aperture.Chuck is also made ， And with steel plate or other material and with welding or adhering method they is linked into an integrated entity.Chuck generally is advisable with 10 millimeters to 100 millimeters to cavity thickness 〉=1 of housing millimeter, decides on specific product.
Certainly, this product can have the automatic control negative pressure adjusting device in the lump, at this moment, the mouth 4 of bleeding that is positioned on the chuck is connected with the automatic control negative pressure adjusting device, for not having the automatic control negative pressure adjusting device, in use, the vacuum available pump is received on the mouth of bleeding and is vacuumized, thereby makes the chuck inner chamber remain high vacuum state.
Because housing has porous, be in high vacuum state at setting of housing outside and chuck And and the chuck inner chamber that housing keeps certain space, thereby make the backing layer that is in the negative pressure duty cavity, be in barotropic state with respect to condition of high vacuum degree, even thereby lining be in the negative pressure duty, also can be attached to tightly on the perforated shell, the negative-pressure operation of reason internal work medium and flat in being inhaled not causes that product is inner to be stopped up, and influences operate as normal.In addition, cavity is set after, can prevent the obstruction in hole on the housing.
Fig. 2 is negative pressure resistant lining equipment temperature one pressue-graph of band teflon lined.As seen from the figure, the present invention has higher anti-range of negative pressure.Can be used as main equipment, pipeline and accessory, Venturi tube and various unit operating equipments such as the tower that is in the high negative pressure duty, still, jar, groove.
Claims (3)
1, a kind of negative pressure-resisting corrosion-resisting lining comprises housing 2 and lining 1, it is characterized in that housing 2 has a plurality of through holes 6, is added with chuck 3 in the outside of perforated shell, leaves cavity 5 between chuck and the housing, and cavity 5 communicates with hole 6, the mouth 4 of bleeding on the chuck.
2, negative pressure-resisting corrosion-resisting lining according to claim 1 is characterized in that chuck is to cavity thickness 〉=1 of housing millimeter.
3, negative pressure-resisting corrosion-resisting lining according to claim 1 and 2 is characterized in that this product has the automatic control negative pressure adjusting device, and the mouth of bleeding on the chuck is connected with the automatic control negative pressure adjusting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90109804 CN1038563C (en) | 1990-12-18 | 1990-12-18 | Negative pressure-resisting corrosion-resisting lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90109804 CN1038563C (en) | 1990-12-18 | 1990-12-18 | Negative pressure-resisting corrosion-resisting lining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1062674A true CN1062674A (en) | 1992-07-15 |
| CN1038563C CN1038563C (en) | 1998-06-03 |
Family
ID=4881607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90109804 Expired - Fee Related CN1038563C (en) | 1990-12-18 | 1990-12-18 | Negative pressure-resisting corrosion-resisting lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1038563C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059382C (en) * | 1996-10-07 | 2000-12-13 | 严文通 | Products of negative pressure tightly lining teflon and tightly lining process for the products |
| CN1077821C (en) * | 1997-08-18 | 2002-01-16 | 凌发祥 | Process for heat transferring lead plate lining |
| CN102004116A (en) * | 2010-09-14 | 2011-04-06 | 胡永庆 | Method for decomposing thermal expansion stress generated by adhering polytetrafluoroethylene (PTFE) sheet to steel tank inner wall under condition of high temperature |
| CN104343975A (en) * | 2014-10-15 | 2015-02-11 | 湖北中孚化工集团有限公司 | Negative pressure tank body with lining part and use method for negative pressure tank body under negative pressure |
-
1990
- 1990-12-18 CN CN 90109804 patent/CN1038563C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059382C (en) * | 1996-10-07 | 2000-12-13 | 严文通 | Products of negative pressure tightly lining teflon and tightly lining process for the products |
| CN1077821C (en) * | 1997-08-18 | 2002-01-16 | 凌发祥 | Process for heat transferring lead plate lining |
| CN102004116A (en) * | 2010-09-14 | 2011-04-06 | 胡永庆 | Method for decomposing thermal expansion stress generated by adhering polytetrafluoroethylene (PTFE) sheet to steel tank inner wall under condition of high temperature |
| CN104343975A (en) * | 2014-10-15 | 2015-02-11 | 湖北中孚化工集团有限公司 | Negative pressure tank body with lining part and use method for negative pressure tank body under negative pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1038563C (en) | 1998-06-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |