CN102454636A - Discharge stage for high-temperature and high-pressure centrifugal pump - Google Patents
Discharge stage for high-temperature and high-pressure centrifugal pump Download PDFInfo
- Publication number
- CN102454636A CN102454636A CN2010105165939A CN201010516593A CN102454636A CN 102454636 A CN102454636 A CN 102454636A CN 2010105165939 A CN2010105165939 A CN 2010105165939A CN 201010516593 A CN201010516593 A CN 201010516593A CN 102454636 A CN102454636 A CN 102454636A
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- China
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- exit end
- water exit
- end housing
- flow deflecting
- centrifugal pump
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Abstract
The invention relates to a discharge stage for a high-temperature and high-pressure centrifugal pump, which relates to the field of the discharge stage of the centrifugal pump for a high-temperature and high-pressure medium. A diversion cone (4) is welded in an inner cavity of a discharge stage shell (3); an included angel alpha between the outer circular conical surface of the diversion cone (4) and the horizontal center axial line of the discharge stage shell (3) is equal to 9 degrees to 11 degrees; a pump shaft penetrating hole (12) and a balancing cavity (13) are arranged on the same horizontal line of the center of the discharge stage shell (3) and the center of the diversion cone (4); one side of the discharge stage shell (3) is provided with a balancing channel (7), a delivery gauge installing hole (15), a water outlet pump cover connecting bolt hole (16) and a drain hole (17); the other side of the discharge stage shell (3) is provided with a middle-stage installing surface (20); and a rod penetrating hole (10) is arranged on the discharge stage shell (3). The discharge stage for the high-temperature and high-pressure centrifugal pump has a simple structure, is convenient to install, can be used for delivering the high-temperature and high-pressure liquid medium, has low power consumption and small loss in head, and cannot form cavitation.
Description
Technical field:
HTHP centrifugal pump of the present invention relates to the centrifugal pump that is used for the high-temperature high-pressure liquid body medium with water exit end and uses the water exit end field.
Background technique:
After being transported to the outlet passage of centrifugal pump water exit end for the high-temperature high-pressure liquid body medium by the impeller of centrifugal pump; In order to reduce fluid head loss; Then should design specific by formed outlet passage between water exit end housing and the flow deflecting cone; And in water exit end housing inner chamber He in the flow deflecting cone inner chamber, should form specified structure,, and should have the particular balance passage that connection centrifugal pump external balance pipeline is used for installation pump shaft and parts such as gimbal, Balance disc; In a word, should design special in the centrifugal pump water exit end of carrying high temperature, high pressure liquid.
Summary of the invention:
The purpose of this invention is to provide a kind of HTHP centrifugal pump and use water exit end; Be connected to the flange that connects outlet pipe at water exit end housing one face down bonding; Be welded with left pump pin and right pump pin in water exit end housing bottom and arranged on left and right sides; In water exit end housing inner chamber, be welded with flow deflecting cone, have balance channel and weep hole, the water exit end decapacitation water outlet that is designed is outer and can reach and use the purpose that the hydraulic head loss reduces.
The HTHP centrifugal pump is used water exit end, and it is made up of flange, water exit end housing, flow deflecting cone, left pump pin, right pump pin, is welded with flange on water exit end housing top, respectively is welded with left pump pin and right pump pin in water exit end lower housing portion and arranged on left and right sides; In water exit end housing inner chamber, be welded with flow deflecting cone; The angle of the horizontal center line axis of the outer conical surface of flow deflecting cone and water exit end housing: α=9 °～11 ° have pump shaft mounting hole and counter balance pocket on the same horizontal axis at water exit end housing center and flow deflecting cone center; Have balance channel, delivery gauge mounting hole in water exit end housing one side, go out water pump cover connecting bolt hole, weep hole; Have the stage casing attachment face at water exit end housing opposite side; On the water exit end housing, also have rod shot-hole.
After HTHP centrifugal pump of the present invention should be able to make the aqueous solution that the final stage stator by the HTHP centrifugal pump flows out enter into the outlet passage of this HTHP centrifugal pump with water exit end with the structure of water exit end; Can reduce loss of pressure head; The aqueous solution loss of pressure head that structure produced that is said water exit end is very little; Therefore; By the outlet passage that should be able to constitute the required given shape that reduces loss of pressure head between the inner chamber of said water exit end housing and the flow deflecting cone, this depends primarily on the shape and structure of flow deflecting cone.
The structure of said flow deflecting cone is the circular cone structure that on the central axis of flow deflecting cone body, has pump shaft mounting hole and counter balance pocket, and the inboard circular planes circle of flow deflecting cone is welded on the inner chamber circular planes of water exit end housing; On the circumference on the inboard circular planes of flow deflecting cone, have some gimbal construction bolt holes in uniform way,, gimbal is installed on the inboard circular planes of flow deflecting cone through bolt; In the inner chamber of flow deflecting cone with the water exit end housing go out the counter balance pocket that is formed with hollow circle in the inner chamber in the water pump cover attachment face, the component such as Balance disc of centrifugal pump can be installed in the counter balance pocket of circle.
On the toroidal surface of the outside of flow deflecting cone, have flow deflecting cone hanging bolt hole, the flow deflecting cone hanging bolt can be installed so that the lifting flow deflecting cone; The impeller attachment face that one circle indent is arranged on the outer ring of the outside of flow deflecting cone toroidal surface is for the impeller that centrifugal pump is installed.
The outer conical surface external diameter of flow deflecting cone is reduced by the inboard laterally gradually, the angle between the horizontal center line axis of the outer conical surface of flow deflecting cone and water exit end housing: α=9 °～11 °, its optimum value is: 10.2 °.
In the water exit end housing He outside the flow deflecting cone, form outlet passage.
The flange circle is welded in water exit end housing top, and and arranged on left and right sides is welded with left pump pin and right pump pin respectively in the water exit end bottom; In left pump pin and right pump pin, have the pump lifting eye, for the lifting pump housing.
Have the delivery gauge mounting hole and go out water pump cover connecting bolt hole at water exit end housing one upper lateral part and bottom; Be used for respectively installing and indicate delivery gauge that saliva presses and water pump cover is installed out through going out the water pump cover connecting bolt; The bottom has weep hole in water exit end housing one side, for getting rid of the ponding of shutting down in the water exit end housing of back.
Have one at water exit end housing opposite side and enclose the stage casing attachment face of circular indent, for the stage casing that centrifugal pump is installed.
On the water exit end housing, also have some straight-through pole perforating holes,, water exit end is installed on suction casing for bar.
Also have balance channel on water exit end housing top, for being connected hydraulic pressure in the equilibrium centrifugation pump with the outer balance tube of water exit end.
HTHP centrifugal pump of the present invention is simple in structure with water exit end, installs easy to connectly, is processed by stainless steel, can carry the high-temperature high-pressure liquid body medium, and low in energy consumption, loss of pressure head is little, can not form cavitation erosion.
Description of drawings:
Fig. 1: the HTHP centrifugal pump is with water exit end 1 cross-sectional schematic.
Fig. 2: the HTHP centrifugal pump is looked schematic representation with water exit end 1 left side.
Fig. 3: the HTHP centrifugal pump is looked schematic representation with water exit end 1 right side.
Embodiment:
Referring to each accompanying drawing; The HTHP centrifugal pump is used water exit end; It is made up of flange 2, water exit end housing 3, flow deflecting cone 4, left pump pin 5, right pump pin 6, is welded with flange 2 on water exit end housing 3 tops, respectively is welded with left pump pin 5 and right pump pin 6 in water exit end housing 3 bottom and arranged on left and right sides; In water exit end housing 3 inner chambers, be welded with flow deflecting cone 4; The angle of the horizontal center line axis of the outer conical surface of flow deflecting cone 4 and water exit end housing 3: α=9 °～11 ° have pump shaft mounting hole 12 and counter balance pocket 13 on the same horizontal axis at water exit end housing 3 centers and flow deflecting cone 4 centers; Have balance channel 7, delivery gauge mounting hole 15 in water exit end housing 3 one sides, go out water pump cover connecting bolt hole 16, weep hole 17; Have stage casing attachment face 20 at water exit end housing 3 opposite sides; On water exit end housing 3, also have rod shot-hole 10.
On the flow deflecting cone body central axis of flow deflecting cone 4, be symmetrical in central axis and have pump shaft mounting hole 12 and counter balance pocket 13, flow deflecting cone 4 is a circular cone structure, flow deflecting cone 4 inboard circular planes circles are welded on the inner chamber circular planes of water exit end housing 3; On the circumference of the inboard circular planes of flow deflecting cone 4, have some gimbal construction bolt holes 19 in uniform way, can gimbal be installed on the inboard circular planes of flow deflecting cone; In the inner chamber of flow deflecting cone 4 with water exit end housing 3 go out the counter balance pocket 13 that is formed with hollow circle in the inner chamber in the water pump cover attachment face 9, in the counter balance pocket 13 of circle, the component such as Balance disc of centrifugal pump can be installed.
On the toroidal surface of the outside of flow deflecting cone 4, have flow deflecting cone hanging bolt hole 18, for the flow deflecting cone hanging bolt being installed, the lifting flow deflecting cone.
On the outer ring of the outside of flow deflecting cone 4 toroidal surface, the impeller attachment face 14 of a circle indent is arranged, for the impeller that centrifugal pump is installed.
The outer conical surface external diameter of flow deflecting cone 4 is reduced by the inboard laterally gradually, angle=9 between the horizontal center line axis of the outer conical surface of flow deflecting cone 4 and water exit end housing 3 °～11 °, and the angle optimum value is 10.2 °.
Flange 2 circles are welded in water exit end housing 3 tops.
Be welded with left pump pin 5 and right pump pin 6 respectively in water exit end 3 bottom and arranged on left and right sides; In left pump pin 5 and right pump pin 6, have pump lifting eye 11, for the lifting pump housing.
Have delivery gauge mounting hole 15 at water exit end housing 3 one upper lateral parts, be used for the installation outlet pressure gauge.
Have out water pump cover connecting bolt hole 16 at water exit end housing 3 one side lower parts, for water pump cover is installed out.
The bottom has weep hole 17 in water exit end housing 3 one sides, the ponding when shutting down for eliminating in the water exit end housing 3.
Have one at water exit end housing 3 opposite sides and enclose the stage casing attachment face 20 of circular indent, for the centrifugal pump stage casing is installed.
On water exit end housing 3, also have some circular straight-through pole perforating holes 10,, water exit end and suction casing are installed on together for installing bar.
Also have balance channel 7 on water exit end housing 3 tops, for being connected with the outer balance tube of water exit end.
Claims (10)
1. the HTHP centrifugal pump is used water exit end; It is made up of flange (2), water exit end housing (3), flow deflecting cone (4), left pump pin (5), right pump pin (6); It is characterized in that being welded with flange (2) on water exit end housing (3) top, and arranged on left and right sides respectively is welded with left pump pin (5) and right pump pin (6) in water exit end housing (3) bottom; In water exit end housing (3) inner chamber, be welded with flow deflecting cone (4); The angle of the horizontal center line axis of the outer conical surface of flow deflecting cone (4) and water exit end housing (3): α=9 °～11 ° have pump shaft mounting hole (12) and counter balance pocket (13) on the same horizontal axis at water exit end housing (3) center and flow deflecting cone (4) center; Have balance channel (7), delivery gauge mounting hole (15) in water exit end housing (3) one sides, go out water pump cover connecting bolt hole (16), weep hole (17); Have stage casing attachment face (20) at water exit end housing (3) opposite side; On water exit end housing (3), also have rod shot-hole (10).
2. HTHP centrifugal pump according to claim 1 is used water exit end, it is characterized in that flow deflecting cone (4) is a circular cone structure, and the inboard circular planes circle of flow deflecting cone (4) is welded on the inner chamber circular planes of water exit end housing (3); On the circumference of the inboard circular planes of flow deflecting cone (4), have some gimbal construction bolt holes (19) in uniform way.
3. HTHP centrifugal pump according to claim 1 is used water exit end, it is characterized in that in the inner chamber of flow deflecting cone (4) counter balance pocket (13) that is formed with hollow circle in the inner chamber in the water pump cover attachment face (9) that goes out with water exit end housing (3).
4. HTHP centrifugal pump according to claim 1 is used water exit end, it is characterized in that on the outside toroidal surface of flow deflecting cone (4), having flow deflecting cone hanging bolt hole (18); On the outer ring of the outside toroidal surface of flow deflecting cone (4), the impeller attachment face (14) of a circle indent is arranged.
5. HTHP centrifugal pump according to claim 1 is used water exit end; The outer conical surface external diameter that it is characterized in that flow deflecting cone (4) is reduced by the inboard laterally gradually, and the angle optimum value between the horizontal center line axis of the outer conical surface of flow deflecting cone (4) and water exit end housing (3) is 10.2 °.
6. HTHP centrifugal pump according to claim 1 is used water exit end, it is characterized in that in left pump pin (5) and right pump pin (6), having pump lifting eye (11).
7. HTHP centrifugal pump according to claim 1 is used water exit end, it is characterized in that having delivery gauge mounting hole (15) and going out water pump cover connecting bolt hole (16) at water exit end housing (3) one upper lateral parts and bottom.
8. HTHP centrifugal pump according to claim 1 is used water exit end, it is characterized in that the bottom has weep hole (17) in water exit end housing (3) one sides.
9. HTHP centrifugal pump according to claim 1 is used water exit end, it is characterized in that having at water exit end housing (3) opposite side the stage casing attachment face (20) of the circular indent of a circle.
10. HTHP centrifugal pump according to claim 1 is used water exit end, it is characterized in that on water exit end housing (3), also having some circular straight-through pole perforating holes (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105165939A CN102454636A (en) | 2010-10-20 | 2010-10-20 | Discharge stage for high-temperature and high-pressure centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105165939A CN102454636A (en) | 2010-10-20 | 2010-10-20 | Discharge stage for high-temperature and high-pressure centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102454636A true CN102454636A (en) | 2012-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105165939A Pending CN102454636A (en) | 2010-10-20 | 2010-10-20 | Discharge stage for high-temperature and high-pressure centrifugal pump |
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|---|---|
| CN (1) | CN102454636A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3877834A (en) * | 1973-09-24 | 1975-04-15 | Speck Pumpen | Self-priming centrifugal pumps |
| SU1601415A1 (en) * | 1987-12-30 | 1990-10-23 | Предприятие П/Я М-5356 | Centrifugal pump |
| US6537024B2 (en) * | 1998-08-03 | 2003-03-25 | Industrial Technology Research Institute | Method for fabricating sheet metal pump casing |
| CN1601113A (en) * | 2003-09-26 | 2005-03-30 | M·米勒电气有限责任公司 | Side channel compressor |
| CN200999763Y (en) * | 2006-12-21 | 2008-01-02 | 于国强 | Improved centrifugation water discharge pump case |
| CN201116545Y (en) * | 2007-11-14 | 2008-09-17 | 上海连成（集团）有限公司 | Loose core type vertical pollution discharging pump flow guiding body equipped with guiding ring |
| CN101463822A (en) * | 2007-12-17 | 2009-06-24 | 王波俊 | Non-impeller hollow screw axis centrifugal cavity pump |
-
2010
- 2010-10-20 CN CN2010105165939A patent/CN102454636A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3877834A (en) * | 1973-09-24 | 1975-04-15 | Speck Pumpen | Self-priming centrifugal pumps |
| SU1601415A1 (en) * | 1987-12-30 | 1990-10-23 | Предприятие П/Я М-5356 | Centrifugal pump |
| US6537024B2 (en) * | 1998-08-03 | 2003-03-25 | Industrial Technology Research Institute | Method for fabricating sheet metal pump casing |
| CN1601113A (en) * | 2003-09-26 | 2005-03-30 | M·米勒电气有限责任公司 | Side channel compressor |
| CN200999763Y (en) * | 2006-12-21 | 2008-01-02 | 于国强 | Improved centrifugation water discharge pump case |
| CN201116545Y (en) * | 2007-11-14 | 2008-09-17 | 上海连成（集团）有限公司 | Loose core type vertical pollution discharging pump flow guiding body equipped with guiding ring |
| CN101463822A (en) * | 2007-12-17 | 2009-06-24 | 王波俊 | Non-impeller hollow screw axis centrifugal cavity pump |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20120516 |
|
| AD01 | Patent right deemed abandoned |