CN202209283U - Rotating-casing type gasoline hydrocracking water injection pump driven by steam turbine - Google Patents
Rotating-casing type gasoline hydrocracking water injection pump driven by steam turbine Download PDFInfo
- Publication number
- CN202209283U CN202209283U CN2011202076702U CN201120207670U CN202209283U CN 202209283 U CN202209283 U CN 202209283U CN 2011202076702 U CN2011202076702 U CN 2011202076702U CN 201120207670 U CN201120207670 U CN 201120207670U CN 202209283 U CN202209283 U CN 202209283U
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- CN
- China
- Prior art keywords
- steam turbine
- rotating
- pump
- water injection
- injection pump
- 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
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Abstract
The utility model discloses a rotating-casing type gasoline hydrocracking water injection pump driven by a steam turbine, which comprises a rotating-casing pump (1) driven by the adjustable back-pressure type steam turbine (2) which is connected with the rotating-casing pump (1) through a membrane coupler (4), and the steam turbine (2) and the rotating-casing pump (1) are installed on a public base (3). By adopting the structure, the rotating-casing type gasoline hydrocracking water injection pump driven by the steam turbine can ensure normal and reliable operation of a gasoline hydrocracking water injection unit, prolongs maintenance period of the unit, saves operation cost and maintenance cost of the unit and accordingly improves production efficiency.
Description
Technical field
The utility model relates to and a kind ofly drives turbine-driven rotation shell type hydrogenation water injection pump based on secondary steam, as hydrocracking water injection equipment in the large-scale oil refining apparatus.
Background technique
As far as centrifugal pump, realize high-lift approach nothing more than two kinds, the one, multipolarity, the 2nd, speed up.For multipolarity; Reach 100m like single-stage impeller lift; Can be from reaching the requirement of 1800m with 18 impellers, but such pump has 18 impellers, 18 stators, 18 inter-stage covers and two cover machines envelope or the like, size is huge, complex structure, maintenance difficult, maintenance expenses are high.For speed up, mainly adopt high speed pump, the rotating speed of pump will reach about 24000r/min, because there are very big disc friction in liquid and housing, the efficient of pump is lower, can only reach about 30%.In addition, multistage pump, high speed pump in use can bring problems such as vibrations, noise and fluctuation of service.
The model utility content
The utility model provides a kind of simple in structure, efficient is high a kind of rotation shell type gasoline hydrogenation cracking water injection pump that adopts steam turbine to drive.
The problem of the required solution of the utility model is to realize through following technological scheme: comprise rotary case pump; It is characterized in that: rotary case pump adopts the back pressure steam turbine of variable-speed to drive; Connect through diaphragm coupling between steam turbine and the rotary case pump, steam turbine and rotary case pump are installed on the common bed.
The said structure that the utility model adopts; Adopt housing and liquid single-stage, the rotation shell type centrifugal pump of rotation synchronously, rotating speed is controlled at about 5000r/min, drives turbine by secondary steam and drives; Can guarantee the normal reliable operation of gasoline hydrogenation cracking water injection pump unit; Prolonged the unit maintenance cycle, saved the operation cost and the recondition expense of unit, thereby improved manufacturing efficiency.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done further explanation:
Shown in Figure 1 is the structural representation of the utility model;
1, rotary case pump 2, steam turbine 3, common bed 4, coupling
Embodiment
Can know by accompanying drawing 1; The rotation shell type gasoline hydrogenation cracking water injection pump that this employing steam turbine drives comprises rotary case pump 1; Rotary case pump 1 adopts the back pressure steam turbine 2 of variable-speed to drive; Connect through diaphragm coupling 4 between steam turbine 2 and the rotary case pump 1, steam turbine 2 is installed on the common bed 3 with rotary case pump 1.Variable-speed back pressure steam turbine 2 is driven by discarded secondary steam, and steam turbine drives major diameter rotation shell type single stage centrifugal pump, as gasoline hydrogenation cracking water injection pump.
After the hydrogenation water injection pump is transformed into the rotation shell type single stage centrifugal pump, the problems such as vibrations, noise and fluctuation of service in multistage pump, the high speed pump using process have been eliminated.
Obviously, the foregoing description of the utility model only be for explain clearly that the utility model does for example, and be not to be qualification to the mode of execution of the utility model.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or changes.Here need not also can't give to all mode of executions exhaustive, and the conspicuous variation that these spirit that belong to the utility model are drawn or the change still be among the protection domain of the utility model.
Claims (1)
1. rotation shell type gasoline hydrogenation cracking water injection pump that adopts steam turbine to drive; Comprise rotary case pump; It is characterized in that: rotary case pump adopts the back pressure steam turbine of variable-speed to drive; Connect through diaphragm coupling between steam turbine and the rotary case pump, steam turbine and rotary case pump are installed on the common bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202076702U CN202209283U (en) | 2011-06-20 | 2011-06-20 | Rotating-casing type gasoline hydrocracking water injection pump driven by steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202076702U CN202209283U (en) | 2011-06-20 | 2011-06-20 | Rotating-casing type gasoline hydrocracking water injection pump driven by steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202209283U true CN202209283U (en) | 2012-05-02 |
Family
ID=45988833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202076702U Expired - Fee Related CN202209283U (en) | 2011-06-20 | 2011-06-20 | Rotating-casing type gasoline hydrocracking water injection pump driven by steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202209283U (en) |
-
2011
- 2011-06-20 CN CN2011202076702U patent/CN202209283U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120502 Termination date: 20180620 |