CN102606535A - Pressurized-water chamber for main oil transfer pump - Google Patents
Pressurized-water chamber for main oil transfer pump Download PDFInfo
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- CN102606535A CN102606535A CN2012100833105A CN201210083310A CN102606535A CN 102606535 A CN102606535 A CN 102606535A CN 2012100833105 A CN2012100833105 A CN 2012100833105A CN 201210083310 A CN201210083310 A CN 201210083310A CN 102606535 A CN102606535 A CN 102606535A
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- chamber
- pressurized
- stream device
- spiral case
- flow expander
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Abstract
The invention discloses a pressurized-water chamber for a main oil transfer pump, which comprises a spiral overflow channel; the spiral overflow channel is arranged between the inner wall of a volute chamber and an outer circumference of a flow expander; the volute chamber is connected with a water outlet pipe; the flow expander is sleeved on the outer circumference of an impeller internally arranged in the volute chamber; the flow expander comprises flow expander blades arranged along the circumference of the flow expander, and a flow expander channel of the flow expander is formed between two adjacent flow expander blades. The pressurized-water chamber has the following technical effects that the pressurized-water chamber improves the flow field in the pressurized-water chamber and eliminates the residual radial force of the pressurized-water chamber; simultaneously, under the condition of not changing the volute chamber and ensuring the efficiency unchanged, the alternation of the engineering parameter can be adapted only by changing the flow expander and the impeller.
Description
Technical field
The present invention relates to a kind of pumping chamber that is used for the oil transportation main pump of petroleum industry.
Background technique
The oil transportation main pump is one of visual plant in the long Distance Transmission of crude oil or product oil.The oil transportation main pump must be able to adapt to the round-the-clock environment in many regions, also must can realize unmanned, telecontrol, so the user has higher requirement to the oil transportation main pump.Pumping chamber is meant the flow channels of impeller outlet to the pump discharge flange.Its effect is to collect the high-speed liquid that flows out from impeller, and converts most of kinetic energy of liquid into the pressure ability, then through being provided with and the terminal outlet(discharge) flange of outer pipe, with the impeller inlet of said liquid introducing pressure supply water pipe or back level impeller.At present, what the oil transportation main pump often adopted is single snail shell coiling pumping chamber, and it not only plays a part to collect liquid, converts partially liq kinetic energy to pressure energy simultaneously.It requires pressure distribution even in design, to reduce the radial force of working fluid, reduces the water conservancy loss in the pumping chamber, improve the transfer efficiency of oil transportation main pump, but crude oil is the liquid of thickness, through pumping chamber the time, can produce the obvious speed gradient.And the radial force of how eliminating in single pumping chamber of scroll casing is one of the technical barrier in affiliated field always.
Summary of the invention
The objective of the invention is provides a kind of pumping chamber that is used for the oil transportation main pump in order to overcome the deficiency of existing technology, and it helps to reduce the radial force of liquid in pumping chamber.
A kind of technological scheme that realizes above-mentioned purpose is: a kind of pumping chamber that is used for the oil transportation main pump comprises a spirality flow channels; Said spirality flow channels flows between the excircle of device in the inwall and the expansion of spiral case chamber;
Said spiral case chamber is connected to outlet pipe;
Said expansion stream device is socketed on the excircle that is built in the indoor impeller of said spiral case; Said expansion stream device comprises the expansion stream device blade that is provided with along the circumference of said expansion stream device, forms the expansion stream device runner of said expansion stream device between adjacent two said expansion stream device blades.
Further, the section of said spirality flow channels is a trapezoidal cross-section.
Further, said spiral case chamber is single volute type spiral case chamber.
Further, the end of said outer pipe is provided with outlet(discharge) flange.
Further, between the inwall of the axial two ends of said impeller and said spiral case chamber impeller ring and casing ring are set.
Adopted a kind of technological scheme that is used for the pumping chamber of oil transportation main pump of the present invention; Be that the stream device is expanded in socket on the excircle of said impeller, said pumping chamber is the technological scheme of the spirality flow channels between the inwall of excircle and said spiral case chamber of said expansion stream device.Its technique effect is: improve liquid in said pumping chamber the flow field and eliminate the remaining radial force of said pumping chamber; Do not changing under the constant situation of said spiral case chamber and guaranteed efficiency simultaneously, only needing replacing expansion stream device and impeller just can adapt to the change of engineering parameter.
Description of drawings
Fig. 1 is a kind of radial structure schematic representation that is used for the pumping chamber of oil transportation main pump of the present invention;
Fig. 2 is a kind of axial arrangement schematic representation that is used for the pumping chamber of oil transportation main pump of the present invention.
Embodiment
See also Fig. 1 and Fig. 2, in order to understand technological scheme of the present invention better, below through embodiment particularly and combine accompanying drawing at length to explain:
Consult Fig. 1 and Fig. 2, a spiral case chamber 1 that is connected with outlet pipe 11 is provided with impeller 2 in the said spiral case chamber 1; Stream device 3 is expanded in socket on the excircle of said impeller 2, and said expansion stream device 3 is an annular; Said expansion stream device 3 comprises the expansion stream device blade 32 that is provided with along the circumference of said expansion stream device 3; Form the expansion stream device runner 31 of said expansion stream device 3 between adjacent two said expansions stream device blades 32, pumping chamber of the present invention is a formation spirality flow channels 4 between the inwall of excircle and said spiral case chamber 1 of said expansion stream device 3.
The purpose of design is like this: improve liquid in said pumping chamber the flow field and eliminate the remaining radial force of said pumping chamber; Do not changing under the constant situation of spiral case chamber and guaranteed efficiency simultaneously, only needing the said expansion stream of replacing device 3 and said impeller 2 just can adapt to the change of engineering parameter.These 2 all traditional pumping chambers are to realize.
Because in the present embodiment, said spiral case chamber 1 is single volute type spiral case chamber, so a kind of pumping chamber that is used for the oil transportation main pump among the present invention belongs to single snail shell coiling pumping chamber.The purpose of design is like this:
Help to reduce the cross-sectional area of said outlet pipe 11 ends, reduce the bore of said outlet(discharge) flange 12, reduce the flow velocity of liquid, reduce the local resistance loss of said liquid at terminal 11 places of said outer pipe in said outer pipe 11 tail ends
In the present embodiment; The section configuration of said spirality flow channels 4 is trapezoidal; The purpose of design is like this: liquid flows out in said expansion stream device runner 31, flows in the process of said spirality flow channels 4, flows along oblique line directions; The just in time identical liquid of the section of said spirality flow channels 4 flows the streamline that device runner 31 flows to said spirality flow channels 4 from said expansion, can reduce the hydraulic loss of liquid in pumping chamber like this.Liquid through said outer pipe 11, is discharged said pumping chamber through after the said spirality flow channels 4.
In addition, in order to strengthen the sealing of said pumping chamber, impeller ring 21 and casing ring 13 are set between the inwall of the axial two ends of said impeller 2 and said spiral case chamber 1.
Those of ordinary skill in the art will be appreciated that; Above embodiment is used for explaining the present invention; And be not to be used as qualification of the present invention; As long as in connotation scope of the present invention, all will drop in claims scope of the present invention the above embodiment's variation, modification.
Claims (5)
1. a pumping chamber that is used for the oil transportation main pump comprises a spirality flow channels (4); It is characterized in that:
Said spirality flow channels (4), the inwall and the expansion that are positioned at spiral case chamber (1) are flowed between the excircle of device (3);
Said spiral case chamber (1) is connected to outlet pipe (11);
Said expansion stream device (3) is socketed on the excircle of the impeller (2) that is built in the said spiral case chamber (1); Said expansion stream device (3) comprises the expansion stream device blade (32) that is provided with along the circumference of said expansion stream device (3), forms the expansion stream device runner (31) of said expansion stream device (3) between adjacent two said expansion stream device blades (32).
2. a kind of pumping chamber that is used for the oil transportation main pump according to claim 1 is characterized in that: the section of said spirality flow channels (4) is a trapezoidal cross-section.
3. a kind of pumping chamber that is used for the oil transportation main pump according to claim 1 and 2 is characterized in that: said spiral case chamber (1) is single volute type spiral case chamber.
4. according to claim 1 or 2 said a kind of pumping chambers that are used for the oil transportation main pump, it is characterized in that: the end of said outer pipe (11) is provided with outlet(discharge) flange (12).
5. a kind of pumping chamber that is used for the oil transportation main pump according to claim 1 and 2 is characterized in that: impeller ring (21) and casing ring (13) are set between the inwall of the axial two ends of said impeller (2) and said spiral case chamber (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100833105A CN102606535A (en) | 2012-03-27 | 2012-03-27 | Pressurized-water chamber for main oil transfer pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100833105A CN102606535A (en) | 2012-03-27 | 2012-03-27 | Pressurized-water chamber for main oil transfer pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102606535A true CN102606535A (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100833105A Pending CN102606535A (en) | 2012-03-27 | 2012-03-27 | Pressurized-water chamber for main oil transfer pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102606535A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2816434Y (en) * | 2005-09-08 | 2006-09-13 | 上海东方泵业(集团)有限公司 | Vortex-adding chamber structure for water pump |
| JP2008215250A (en) * | 2007-03-06 | 2008-09-18 | Toyota Industries Corp | Centrifugal compressor |
| CN202158014U (en) * | 2011-07-28 | 2012-03-07 | 重庆水泵厂有限责任公司 | High-temperature high-inlet-pressure single stage pump hydraulic power part structure |
| CN202597252U (en) * | 2012-03-27 | 2012-12-12 | 上海阿波罗机械股份有限公司 | Pressurized water chamber for oil transporting main pump |
-
2012
- 2012-03-27 CN CN2012100833105A patent/CN102606535A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2816434Y (en) * | 2005-09-08 | 2006-09-13 | 上海东方泵业(集团)有限公司 | Vortex-adding chamber structure for water pump |
| JP2008215250A (en) * | 2007-03-06 | 2008-09-18 | Toyota Industries Corp | Centrifugal compressor |
| CN202158014U (en) * | 2011-07-28 | 2012-03-07 | 重庆水泵厂有限责任公司 | High-temperature high-inlet-pressure single stage pump hydraulic power part structure |
| CN202597252U (en) * | 2012-03-27 | 2012-12-12 | 上海阿波罗机械股份有限公司 | Pressurized water chamber for oil transporting main pump |
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Application publication date: 20120725 |