CN2637782Y - Centrifugal pump for chemical industry - Google Patents
Centrifugal pump for chemical industry Download PDFInfo
- Publication number
- CN2637782Y CN2637782Y CN 03277402 CN03277402U CN2637782Y CN 2637782 Y CN2637782 Y CN 2637782Y CN 03277402 CN03277402 CN 03277402 CN 03277402 U CN03277402 U CN 03277402U CN 2637782 Y CN2637782 Y CN 2637782Y
- Authority
- CN
- China
- Prior art keywords
- pump
- impeller
- cover
- bearing
- pump body
- 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
Abstract
The utility model relates to a pump, particularly a centrifugal pump for chemical industry which is used for conveying petroleum, liquefied petroleum gas, and other medium in trade of petroleum refineThe utility model relates to a pump, in particular to a chemical engineering eccentric pump for transporting petroleum, liquefied petroleum gas and other mediums used in petroleum refinery, petrochemiment, petrochemical industry, chemical industry, etc. The utility model comprises a pump body, a mechanical seal, a bearing, an impeller, a pump shaft and a pump cover. The utility model is characterical industry and chemical engineering etc. The eccentric pump comprises a pump body, a mechanical sealing, a bearing, an impeller, a pump shaft and a pump cover, which is characterized in that: an abrzed in that the inner chamber of the pump body is provided with a wear resistant lining tube; a pump body wear resistant lining board and a pump cover wear resistant lining board are arranged between asion resistant lining pipe is arranged in the inner cavity of the pump body, and a pump body abrasion resistant lining board and a pump cover abrasion resistant lining board are respectively arrangedthe impeller and the pump body. The single-stage and single-suction centrifugal pump for chemical industry which is designed as above can meet the requirement of bearing the pressure of high voltage a between the impeller and the pump body and the pump cover. The single-stage single-entry chemical engineering eccentric pump can not only bear a high pressure of about 9Mpa in coal chemical industry,bout 9 Mpa in the coal chemical industry field and can meet the requirement of high position, high voltage, and wear resistant performance; thus, the repair and maintenance period is extended, and the but also meet the requirements of high-order orbit and high pressure and abrasion resistant performance, thereby prolonging the repairing and maintenance period and lowering the production cost. production cost is reduced.
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: in coal chemical technology, often need a kind of one step single sucking chemical centrifugal pump that bears the about 9Mpa pressure of high pressure, the inlet pressure of this pump is at 6-7Mpa, the sealing water pressure is at 8.3-9.1Mpa, and need bear corrosion such as coal ash requirement, this pump requires the Rockwell hardness of wearing piece about 58-62, and the pump housing also need bear the requirement of high-order high pressure, according to the relevant Searches of Patent Literature, general one step single sucking chemical centrifugal pump does not reach this requirement at all at present, even though adopt this chemical centrifugal pump can meet the demands in the short time, leakage phenomenon appears in this pump easily, its working life is very short, and the cost of production of factory can increase substantially.
Summary of the invention: the purpose of this utility model just provides a kind of new design idea, design a kind of one step single sucking chemical centrifugal pump and can satisfy the pressure that in coal chemical technology, bears the about 9Mpa of high pressure, can satisfy the requirement of High Temperature High Pressure and wear-resisting property simultaneously again.
The purpose of this utility model is achieved in that a kind of chemical centrifugal pump comprises the pump housing, mechanical seal, bearing, impeller, pump shaft, pump cover, on the described pump housing, be provided with import and outlet, this pump housing and described pump cover link together, described pump cover fixes with bearing housing again, described pump shaft by bearing fixing in described bearing housing; Be fixed with impeller at described pump shaft one end by impeller nut, described impeller just in time is between the pump housing and the pump cover; Between pump cover and pump shaft, be provided with mechanical seal; Between the described pump housing and impeller, be provided with seal ring, it is characterized in that: be provided with wear-resisting bushing pipe at described pump housing inner chamber, between described impeller and the pump housing, pump cover, be provided with pump housing abrasion-proof backing block and pump cover abrasion-proof backing block.
The utility model compared with prior art has following advantage:
1. owing to be provided with wear-resisting bushing pipe, can overcome like this and carry in the pump using process friction of high speed medium to the pump housing, the wear resistance and the working life of having improved the pump housing at described pump housing inner chamber;
2. owing between pump cover and pump shaft, be provided with mechanical seal, improved the sealability and the working life of pump;
3. between described impeller and the pump housing, pump cover, be provided with pump housing abrasion-proof backing block and pump cover abrasion-proof backing block, can overcome equally and carry of the friction of high speed medium in the pump using process the pump housing, pump cover and impeller, improved the wear resistance of pump, prolong the maintenance and the maintenance period of pump, reduced the cost of production of factory.
Description of drawings: Fig. 1 is the structural representation of chemical centrifugal pump described in the utility model
1. the pump housing 2. wear-resisting bushing pipe 3. pump housing abrasion-proof backing blocks 4. seal rings 5. impellers
6. pump cover abrasion-proof backing block 7. pump covers 8. axle sleeves 9. mechanical seals 10. machine sealed covers
11. bearing housing 12. bearing glands 13. bearings 14. discs 15. lubricating cups
16. relief opening 17. bearing pack 18. bearing glands 19. pump shafts
Embodiment: as can be seen from Figure 1, a kind of chemical centrifugal pump comprises the pump housing 1, mechanical seal 9, bearing 13, impeller 5, pump shaft 19, pump cover 7, on the described pump housing 1, be provided with import and outlet, this pump housing 1 links together with described pump cover 7, described pump cover 7 fixes with bearing housing 11 again, and described pump shaft 19 is fixed in the described bearing housing 11 by bearing 13 and 17; Be fixed with impeller 5 at described pump shaft 19 1 ends, described impeller 5 just in time is between the pump housing 1 and the pump cover 7; Between pump cover 7 and pump shaft 19, be provided with mechanical seal 9, between the described pump housing and impeller, be provided with seal ring 4, it is characterized in that: be provided with wear-resisting bushing pipe 2 at the described pump housing 1 inner chamber, between described impeller 5 and the pump housing 1, pump cover 7, be provided with pump housing abrasion-proof backing block 3 and pump cover abrasion-proof backing block 6.This wear-resisting bushing pipe and liner plate adopt the Ni-Hard material, after heat treatment its hardness can reach 58-62, because the processibility extreme difference of this abrasion-proof backing block, and fragility is big, so in liner plate, be provided with several equally distributed auxiliary holes, can easily abrasion-proof backing block be connected with pump cover with the pump housing.She Ji one step single sucking chemical centrifugal pump can satisfy bear the about 9Mpa pressure of high pressure in coal chemical technology like this, can satisfy the requirement of High Temperature High Pressure and wear-resisting property simultaneously again, has prolonged the maintenance and the maintenance period of pump, has reduced the cost of production of factory.
Claims (3)
1. a chemical centrifugal pump comprises the pump housing (1), mechanical seal (9), bearing (13), impeller (5), pump shaft (19), pump cover (7), on the described pump housing (1), be provided with import and outlet, this pump housing (1) links together with described pump cover (7), described pump cover (7) fixes with bearing housing (11) again, and described pump shaft (19) is fixed in the described bearing housing (11) by bearing (13) and (17); Be fixed with impeller (5) at described pump shaft (19) one ends, described impeller (5) just in time is between the pump housing (1) and the pump cover (7); Between pump cover (7) and pump shaft (19), be provided with mechanical seal (9), between the described pump housing and impeller, be provided with seal ring (4), it is characterized in that: be provided with wear-resisting bushing pipe (2) at the described pump housing (1) inner chamber.
2. chemical centrifugal pump according to claim 1 is characterized in that: be provided with pump housing abrasion-proof backing block (3) and pump cover abrasion-proof backing block (6) between described impeller (5) and the pump housing (1), pump cover (7).
3. chemical centrifugal pump according to claim 2 is characterized in that: be provided with several equally distributed auxiliary holes in described pump housing abrasion-proof backing block (3) and pump cover abrasion-proof backing block (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277402 CN2637782Y (en) | 2003-08-01 | 2003-08-01 | Centrifugal pump for chemical industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03277402 CN2637782Y (en) | 2003-08-01 | 2003-08-01 | Centrifugal pump for chemical industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2637782Y true CN2637782Y (en) | 2004-09-01 |
Family
ID=34302780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03277402 Expired - Fee Related CN2637782Y (en) | 2003-08-01 | 2003-08-01 | Centrifugal pump for chemical industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2637782Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666317B (en) * | 2009-09-18 | 2011-01-05 | 襄樊五二五泵业有限公司 | Flow passage component of high-temperature high-pressure coal chemical industry |
| CN102615533A (en) * | 2012-04-11 | 2012-08-01 | 河北木源泵业有限责任公司 | Processing mold capable of enabling pump body and pump cover products of double-pump housing of slurry pump to interchange |
| CN105508301A (en) * | 2015-12-18 | 2016-04-20 | 安徽南方化工泵业有限公司 | Corrosion-resistant filtering type pump |
-
2003
- 2003-08-01 CN CN 03277402 patent/CN2637782Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666317B (en) * | 2009-09-18 | 2011-01-05 | 襄樊五二五泵业有限公司 | Flow passage component of high-temperature high-pressure coal chemical industry |
| CN102615533A (en) * | 2012-04-11 | 2012-08-01 | 河北木源泵业有限责任公司 | Processing mold capable of enabling pump body and pump cover products of double-pump housing of slurry pump to interchange |
| CN102615533B (en) * | 2012-04-11 | 2014-06-18 | 河北木源泵业有限责任公司 | Processing mold capable of enabling pump body and pump cover products of double-pump housing of slurry pump to interchange |
| CN105508301A (en) * | 2015-12-18 | 2016-04-20 | 安徽南方化工泵业有限公司 | Corrosion-resistant filtering type pump |
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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 |