CN2789473Y - Back aspirating non-leakaging chemical centrifugal pump - Google Patents
Back aspirating non-leakaging chemical centrifugal pump Download PDFInfo
- Publication number
- CN2789473Y CN2789473Y CN 200420054602 CN200420054602U CN2789473Y CN 2789473 Y CN2789473 Y CN 2789473Y CN 200420054602 CN200420054602 CN 200420054602 CN 200420054602 U CN200420054602 U CN 200420054602U CN 2789473 Y CN2789473 Y CN 2789473Y
- Authority
- CN
- China
- Prior art keywords
- pump
- shaft
- impeller
- pump housing
- end cap
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a pump, particularly a chemical centrifugal pump used for transporting arbitrary medium acid, oxidant and corrosive media with arbitrary concentration in chemical industry, petroleum, pharmacy, foodstuff, etc. The utility model comprises a pump body, an impeller, a pump shaft and an end cap, wherein the pump body is provided with an inlet and an outlet. The utility model is characterized in that the inlet on the pump body is arranged in the radial direction of the pump shaft, and is arranged behind the impeller; therefore, the flow of media can be horizontally inhaled in a radial direction mode and then can be spit vertically. Therefore, the mechanical seal of the pump shaft is in a negative pressure state, so that the shaft seal of the pump has no leakage. A layer of fluorine alloy plastics with strong corrosion resistance is coated on a medium passing part of the pump in order to meet the requirement that the medium passing parts of the pump can not be corroded by media.
Description
Technical field: the utility model relates to a kind of pump, particularly relates to a kind of a kind of chemical centrifugal pump that applies to transfer oil, liquefied petroleum gas (LPG) and other media such as Coal Chemical Industry, petrochemical industry, chemical industry.
Background technique: chemical centrifugal pump is mainly used in the industries such as starch, pressure filter slurry liquid, chemical industry, oil, pharmacy, agricultural chemicals, dyestuff, paint, smelting, papermaking, plating, electric power, food, at-85 ℃--arbitrary medium acid, oxygenant and the Korrosionsmedium of any concentration of long-term delivery under 200 ℃ of conditions.At present, at home and abroad there is following shortcoming in the chemical centrifugal pump that adopts of market: 1. because flow direction is to suck from horizontal axis, vertically spue, the axle envelope position of pump is in high pressure conditions at work always, so the shaft sealing of pump leakage phenomenon can occur after work a period of time, must often change shaft sealing, not only reduce the working efficiency of pump, and bring unnecessary economic burden to enterprise; 2. because arbitrary medium acid, oxygenant and the Korrosionsmedium of any concentration of chemical centrifugal pump meeting long-term delivery, this medium can corrode the overcurrent part of pump, also can make the shaft sealing of pump after work a period of time, leakage phenomenon can occur, also to often change simultaneously the parts of overcurrent part, equally also can bring unnecessary economic burden to enterprise.
Summary of the invention: the purpose of this utility model just provides a kind of new design idea, designs the chemical centrifugal pump that a kind of overcurrent part that can satisfy pump when do not have leaking the arbitrary medium acid that can satisfy again in any concentration of long-term delivery, oxygenant and Korrosionsmedium is not subjected to dielectric corrosion.
The purpose of this utility model is achieved in that a kind of chemical centrifugal pump comprises the pump housing, impeller, pump shaft, end cap, is provided with import and outlet on the described pump housing, and this pump housing and described end cap link together, and described pump shaft is fixed on the described pump housing; Be fixed with impeller at described pump shaft one end, described impeller just in time is between the pump housing and the pump cover; It is characterized in that: the import on the described pump housing is arranged on the radial direction of pump shaft, and is arranged on described impeller rear, makes MEDIA FLOW to sucking from horizontal radial, vertically spues.
The overcurrent part of pump is not subjected to dielectric corrosion when satisfying arbitrary medium acid in any concentration of long-term delivery, oxygenant and Korrosionsmedium, all is surrounded by the strong fluorine alloy plastics of one deck corrosion resistance in the overcurrent part of medium.
The utility model compared with prior art has following advantage:
1. be provided with the radial direction that import is arranged on pump shaft on the described pump housing, and be arranged on described impeller rear, make MEDIA FLOW to sucking from horizontal radial, vertically spue, the sealed member of pump shaft is in negative pressure state, does not reveal so the axle envelope of pump has;
2. owing to all be surrounded by the strong fluorine alloy plastics of one deck corrosion resistance in the overcurrent of medium part, the overcurrent part of pump is not subjected to dielectric corrosion in the time of can satisfying arbitrary medium acid in any concentration of long-term delivery, oxygenant and Korrosionsmedium, improves the working life of pump.
Description of drawings: Fig. 1 is that back suction described in the utility model does not have the structural representation that leaks chemical centrifugal pump
1. the pump housing 2. pump shafts 3. imports 4. pump housing abrasion-proof backing blocks 5. outlets
6. the wear-resisting bushing pipe of impeller 7. end cap 8. pump cover abrasion-proof backing blocks, 9. pump shafts
10. machine sealed cover 11. mechanical seals
Embodiment: as can be seen from Figure 1, a kind of back suction does not have the chemical centrifugal pump of leakage and comprises the pump housing 1, mechanical seal 11, impeller 6, pump shaft 2, end cap 7, be provided with import 3 and outlet 5 on the described pump housing 1, this pump housing 1 links together with described end cap 7; Described pump shaft 2 is fixed on the described pump housing 1 by machine sealed cover 10 and mechanical seal 11, and these pump shaft 2 one ends are fixed with impeller 6, and described impeller 6 just in time is in the cavity between the pump housing 1 and the end cap 7; It is characterized in that: the import 3 on the described pump housing 1 is arranged on the radial direction of pump shaft 2, and be arranged on described impeller 6 rears, make MEDIA FLOW, vertically spue to sucking from horizontal radial, the mechanical seal 11 of pump shaft 2 is in negative pressure state like this, does not reveal so the axle envelope of pump has.The overcurrent part of pump is not subjected to dielectric corrosion when satisfying arbitrary medium acid in any concentration of long-term delivery, oxygenant and Korrosionsmedium, overcurrent part at medium all is surrounded by the wear-resisting bushing pipe 9 of pump housing abrasion-proof backing block 4, pump cover abrasion-proof backing block 8 and pump shaft that the strong fluorine alloy plastics of one deck corrosion resistance are formed, to improve the working life of pump.
Claims (4)
1. a back suction does not have the leakage chemical centrifugal pump, comprise the pump housing (1), mechanical seal (11), impeller (6), pump shaft (2), end cap (7), be provided with import (3) and outlet (5) on the described pump housing (1), this pump housing (1) links together with described end cap (7); Described pump shaft (2) is fixed on the described pump housing (1) by machine sealed cover (10) and mechanical seal (11), and these pump shaft (2) one ends are fixed with impeller (6), and described impeller (6) just in time is in the cavity between the pump housing (1) and the end cap (7); It is characterized in that: the import (3) on the described pump housing (1) is arranged on the radial direction of pump shaft (2), and is arranged on described impeller (6) rear, makes MEDIA FLOW to sucking from horizontal radial, vertically spues.
2. a kind of back suction according to claim 1 does not have the leakage chemical centrifugal pump, it is characterized in that: be provided with the wear-resisting bushing pipe of pump shaft (9) at described pump shaft (2).
3. a kind of back suction according to claim 1 does not have the leakage chemical centrifugal pump, it is characterized in that: be provided with pump housing abrasion-proof backing block (4) at the described pump housing (1).
4. a kind of back suction according to claim 1 does not have the leakage chemical centrifugal pump, it is characterized in that: be provided with end cap abrasion-proof backing block (8) at described end cap (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420054602 CN2789473Y (en) | 2004-12-27 | 2004-12-27 | Back aspirating non-leakaging chemical centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420054602 CN2789473Y (en) | 2004-12-27 | 2004-12-27 | Back aspirating non-leakaging chemical centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2789473Y true CN2789473Y (en) | 2006-06-21 |
Family
ID=36789804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420054602 Expired - Fee Related CN2789473Y (en) | 2004-12-27 | 2004-12-27 | Back aspirating non-leakaging chemical centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2789473Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134610A (en) * | 2015-08-20 | 2015-12-09 | 鸿浩泵业有限公司 | Efficient low-speed anti-corrosion and anti-abrasion pump |
| CN113137372A (en) * | 2021-05-27 | 2021-07-20 | 淄博鲁明泵业有限公司 | Negative pressure type non-sealing vertical fluorine-lined centrifugal pump |
-
2004
- 2004-12-27 CN CN 200420054602 patent/CN2789473Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134610A (en) * | 2015-08-20 | 2015-12-09 | 鸿浩泵业有限公司 | Efficient low-speed anti-corrosion and anti-abrasion pump |
| CN113137372A (en) * | 2021-05-27 | 2021-07-20 | 淄博鲁明泵业有限公司 | Negative pressure type non-sealing vertical fluorine-lined centrifugal pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201521686U (en) | Swing check valve | |
| CN2789473Y (en) | Back aspirating non-leakaging chemical centrifugal pump | |
| CN2806839Y (en) | High efficiency slurry chemical pump | |
| CN2898505Y (en) | Rotary lining check valve | |
| CN202108775U (en) | Slurry pump | |
| CN201190684Y (en) | Slurry pump | |
| CN107829946A (en) | A kind of back suction chemical centrifugal pump | |
| CN2926607Y (en) | Submersible pump | |
| CN203702538U (en) | Embedded corrosion-resistant alloy pump structure | |
| CN207377809U (en) | A kind of side goes out radial direction subdivision double suction centrifugal pump into side | |
| CN2541638Y (en) | Jib liquid submersible pump | |
| CN202073831U (en) | Slurry pump | |
| CN2869478Y (en) | Special valve for chloro-alkali saline water | |
| CN208966688U (en) | A kind of mechanical seal of the gland axle sleeve with silicon carbide wear-resistant coating | |
| CN2541627Y (en) | Improved bellows positive-displacement pump | |
| CN202187928U (en) | Self-balanced leakage-free process pump for petrochemical engineering | |
| CN2546672Y (en) | Stainless steel temperature-resisting pressure resistance ram pump | |
| CN213872226U (en) | Prevent conveyer pipe for production of ready-mixed mortar of jam | |
| CN221033348U (en) | High-temperature high-pressure impeller balance structure | |
| CN201443520U (en) | Three-stage heavy work station high temperature and high pressure centrifugal pump | |
| CN216111300U (en) | High-lift two-stage slurry pump | |
| CN202165283U (en) | Vacuum pump | |
| CN204371665U (en) | A kind of novel fluorine liner magnetic gear pump | |
| CN210949161U (en) | Corrosion-resistant IH type chemical centrifugal pump | |
| CN203847406U (en) | Fluid transfer device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |