CN104019060A - Pumping device, and diffuser used for same - Google Patents
Pumping device, and diffuser used for same Download PDFInfo
- Publication number
- CN104019060A CN104019060A CN201410059233.9A CN201410059233A CN104019060A CN 104019060 A CN104019060 A CN 104019060A CN 201410059233 A CN201410059233 A CN 201410059233A CN 104019060 A CN104019060 A CN 104019060A
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- section
- exit angle
- diffuser
- local portion
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a pumping device, comprising a feeding column which extends around a diffuser of the pumping device, a rotor housing configured between the diffuser on an inlet and the diffuser in a diffuser section, and a feeding pipe which is provided with an outlet short end abutting with the diffuser section. The rotor housing is configured with a pump rotor inside. The diffuser comprises an inlet section configured between the outlet section of the diffuser and the pump rotor, wherein the outlet section is formed with a first part section adjacent to the inlet section, and the first part section inclines relative to the axis of the diffuser along a direction facing the feeding pipe at a first preset outlet angle. The outlet section is provided with a second part section abutting with the first part section, and the second part section inclines relative to the axis of the diffuser at a second outlet angle which is different from the first outlet angle. The invention also relates to the diffuser used for the pumping device.
Description
Technical field
The present invention relates to pumping equipment, particularly vertical pump, but also relate to the diffuser especially for the vertical pump of the preamble according to technological scheme 1 and 10 for pumping equipment.
Background technique
Vertical pump particularly large-scale vertical pump has been successfully used in the prior art multiple application and has reached the very long time.Often manufactured according to user's specification and/or be at length matched with particular demands for the magna pump of application-specific.
Comprise in practice the application of cooling tower, cooling water system, overflow preventing for waste waste pond or bypass channel for the important applied field of the use of vertical pump, or vertical pump is also successfully used to drain large-area land.Vertical pump is also widely used in supplying water, particularly supplies potable water, or as open or locking system in main pump or as service pump.Other application has in for example fire-fighting activity on drill platform of immediate offshore area, and this is only to enumerate several applications by way of example.And, be well-known for a person skilled in the art for other application of the complete series of vertical pump.In this respect, pump can be depending on application and is fixedly mounted in a certain factory, or also can be installed replaceably or be mounted in Height Adjustable mode, realize thus high flexibility, for example, reason is that the vertical position of pump can be matched with different water levels, or different variation situations.
Vertical pump therefore in fact not only but also be conventionally always used in a large amount of fluids not only but be generally water should be at time per unit the relatively low height from lower height to high height while being pumped with relatively low pressure within poor, or also for only overcoming the pressure loss of system.For example, from ocean, river, lake, or from cooling bath, tank, or from liquid collecting hole or sump.
In this respect, one or more levels vertical pump is used, and this means that pump has one or more pump rotors of arranged in series, and its purposes is determined by corresponding application-specific.
About this point, vertical pump is immersed in the liquid storage device for the treatment of pumping conventionally, and at least import or suction Zhong Kou and adjacent pump rotor are immersed in the medium for the treatment of pumping, makes pump be directly ready to operation.
In addition,, in the time that the application of vertical pump is generally not limited to large feeding amount and overcomes smaller height difference,, in the time must carrying very a large amount of fluids in smaller height difference in the unit time, just in time use especially large-scale vertical pump.About this point, typical operating parameter for example arrives up to 80,000m3 performance hourly or ability in 1,000m3, and it realizes the typical feed level of 1m-40m.Normally water of the medium being transferred.About this point, aforementioned number range should be understood to just example, and can be exceeded or break by a fall, depends on application, just as the skilled personnel to understand.
In order to understand better the present invention, now should be below with reference to figure 1a and/or Fig. 1 b, the 26S Proteasome Structure and Function principle of the known vertical pump of prior art be described, this vertical pump improves by the present invention.
At this moment, should be noted that: the reference character that relates to the feature of the known pump of prior art or pump parts is provided with single quotation marks in the application's framework, as according to Fig. 1 a and/or Fig. 1 b from the situation of the known example of prior art.Meanwhile, the reference character that relates to the feature of embodiments of the invention is not with single quotation marks, as the situation of the exemplary embodiment according to Fig. 2 a and/or Fig. 2 b.
Fig. 1 a shows the well-known vertical pump 1' of prior art, and it has diffuser 5', and wherein Fig. 1 b is to show slightly in more detail the diffuser 5' of Fig. 1 a, to understand better.
Comprise feeding post 2' according to Fig. 1 a and/or Fig. 1 b from the known vertical pump 1' of prior art, its diffuser axis A' around vertical pump 1' extends and has rotor housing 3', and described rotor housing 3' is configured between the diffuser 5' and import 20' being provided in the section 4' of diffuser portion.There is the feeding tube 6' of outlet short end 21' in abutting connection with the section 4' of diffuser portion.About this point, pump rotor 7' is configured in rotor housing 3', make in serviceability, the fluid F treating to be carried by pump rotor 7' ' can be inhaled into via import 20', and again discharged from the feeding post 2' of vertical pump 1' via the section 4' of diffuser portion, feeding tube 6' and via outlet short end 21'.About this point, diffuser 5' self includes oral area section 51', it is configured between the section 52' of export department of pump rotor 7' and diffuser 5' in a manner known way, and wherein export department's section 52' is constructed to local portion section (part section) 521' in abutting connection with entrance part section 51'.In this respect, the local section 521' of portion along the direction of feeding tube 6' with respect to diffuser axis A' with exit angle α
1' tilt, and exit angle α
1' on the whole local section 521' of portion, not constant conventionally in practice, but variable, the profile that makes the local section 521' of portion is as the example of Fig. 1 a and/or Fig. 1 b and be nonessentially designed to straight tapered portion section or the form of frustoconical sheets, but can have the curved surface with respect to diffuser axis A'.
About this point, pump rotor 7' is driven by motor M' via live axle 8'.Live axle 8' is supported in bearing 10' adjustable in diffuser 5' with respect to diffuser axis A', and it does not rotate together with pump rotor 7', but is for example connected to statically the inwall of the section 4' of diffuser portion by means of diffuser vane by means of attachment means 9'.
As found out, particularly from the detailed icon according to Fig. 1 b, from diffuser 5' leaves, fluid F ' in there is significant turbulent flow T', thus, as illustrated in greater detail below, the feeding energy of non-appreciable amount is lost.
Therefore vertical pump is for example diffuser according to the necessary parts of the vertical pump of Fig. 1 a and/or Fig. 1 b, and it is as already mentioned along pumping direction in abutting connection with pump rotor.
As well-known in those skilled in the art, diffuser is so a kind of parts, it is the same object for the flow of fluid that the slows down in the situation that of pump but also in numerous other technology application not only, thereby thus by energy of flow the most at last the kinetic transformation of liquid be pressure energy, thereby make pressure increase.Therefore, diffuser is the counterpart of nozzle, and described nozzle increases the kinetic energy of fluid with respect to its mode of operation.The additional pressure increment being obtained by diffuser, its in practice can be substantially in 10% the scope up to total pressure or its even can be in higher scope in individual cases, so can be used for realizing higher height difference, i.e. larger pump head, this with do not have diffuser Comparatively speaking.
Kinetic energy is implemented about this point in many factors to the conversion of pressure energy, reason is that the mobile fluid that leaves pump rotor can for example additionally be guided by means of corresponding guide blades aptly, turbulent flow in fluid and eddy current can be suppressed to a certain degree thus, it consumes the definite part of the energy of flow of streaming flow by means of internal friction, be converted into the most at last heat, this energy loss will no longer can be obtained as pressure energy, and it finally can have such effect, realized less pump height and/or must realize required pump head to dropping into more driving-energy in pump.
In addition,, in the time that in prior art, up to the present known diffuser more or less successfully meets the aforementioned object to the transformation of energy of pressure energy, what already shown is that the efficiency of diffuser is still existed to considerable Improvement requirement.This means: in addition, in the time that up to the present known diffuser has been made remarkable contribution for the energy efficiency of vertical pump, this still seems abundant not, particularly for ever-increasing cost of energy.
Summary of the invention
Reason for this reason, the object of this invention is to provide a kind of diffuser and/or pumping equipment of improvement, particularly there is the vertical pump of the diffuser of improvement, can from the fluid of being carried by rotor, regain the pressure energy of greater part by means of this, energy efficiency is finally increased as a whole, and realize larger feed level for introducing identical driving-energy compared with known diffuser in pump, or alternatively for identical feed level, can reduce the total power consumption of pump.
The theme of the present invention that meets this object is met by the feature of technological scheme 1 and 10.
The technical requirements of subordinate relates to particularly advantageous embodiment of the present invention.
Therefore the present invention relates to a kind of pumping equipment, it comprises feeding post, described feeding post has around the rotor housing of the diffuser Axis Extension of pumping equipment, and rotor housing is configured in import and is arranged between the diffuser in diffuser portion section, described feeding post also comprises the feeding tube of outlet short end in abutting connection with diffuser portion section.About this point, in rotor housing, configure pump rotor, make in serviceability, fluid to be conveyed can or suck Zhong Kou via import and be inhaled into from pump rotor, and can and again be discharged from the feeding post of pumping equipment via outlet short end via diffuser portion section, feeding tube.Diffuser includes oral area section, it is configured between export department's section and pump rotor of diffuser, wherein form the first local portion section at section place of export department adjacent to entrance part section, and described the first local portion section tilts with respect to diffuser axis with the first exit angle limiting in advance along the direction towards feeding tube.According to the present invention, form the second local portion section in abutting connection with the first local portion section at section place of export department, and the second local portion section tilts with respect to diffuser axis to be different from the second exit angle of the first exit angle.
Be necessary that for the present invention: the second local portion section is formed in abutting connection with the first local portion section at the Duan Chu of export department of diffuser, and the second local portion section tilts with respect to diffuser axis to be different from the second exit angle of the first exit angle.On the contrary, export department of the prior art section is former is single segment bounds design.Its effect is: the fluid that enters into feeding tube from diffuser portion section changes being subject to very suddenly transition sharply and/or the sharply direction of flow direction, it causes unnecessary whirlpool and turbulent flow in fluid, thereby finally cause energy loss, as described in detail in preface part with reference to figure 1a and Fig. 1 b.
After the outlet of diffuser, the whirlpool of streamwise and this negative effect that turbulent flow causes are significantly suppressed by means of the present invention, reason is to be divided at least two local portion sections according to export department's section of diffuser of the present invention, it has different inclinations, make fluid leave the transition being subject to while entering into feeding tube obviously not so sharply from diffuser, because the space between inwall and the diffuser surface of diffuser portion section expands at least two steps on basis progressively.In other words, change for the mobile direction of fluid occurring according to diffuser of the present invention not too sharply, turbulent flow still less occurs thus, therefore hydraulic slip still less occurs, thereby improved significantly energy efficiency compared with prior art.This means: in the time using according to diffuser of the present invention, for the identical driving-energy being fed in pump, can realize higher pump head, and/or in the time using according to diffuser of the present invention, for identical pump head, electric drive pump needs driving-energy still less, this means and need to carry out driven pump by electric energy still less.
A significant advantage again according to diffuser of the present invention is its elongated design.As for example by relatively according to the known diffuser of Fig. 1 a and/or Fig. 1 b with can easily recognize according to the diffuser of the present invention of Fig. 2 a or Fig. 2 b, export department's section according to diffuser of the present invention is obviously more elongated, and can for example be designed to be shorter, reason is that export department's section generally tilts more with respect to diffuser axis, makes export department's section in shorter distance, approach diffuser axis compared with the situation of known diffuser.Therefore the step, keeping in the outlet port of diffuser between diffuser axis and the end of export department's section also can be realized by the shorter structure length of diffuser.Alternatively, or the while, compared with prior art, for the shorter structure length of diffuser, also can realize less step.Thereby lighter owing to thering is less quality according to diffuser of the present invention compared with the known diffuser of prior art, so the attachment means that diffuser is attached to the inwall place of diffuser portion section by means of it also can be lighter design, can again and then save thus material.
All these as those skilled in the art need not take again twists and turns with regard to saving material intelligible, reduce the weight of diffuser and for the reduction of diffuser structure length reduce frictional loss and the flow losses in diffuser, therefore finally not only in the operation of diffuser, save cost, but also save cost in the manufacture of diffuser, make thus according to the price of diffuser of the present invention and/or have according to the price of the pump of diffuser of the present invention and can be reduced, therefore the competitive ability of this product is increased by means of the present invention.
For a preferred embodiment according to pumping equipment of the present invention, further additionally configure at least one the 3rd local portion section at section place of export department, and the 3rd the local Duan Yi of portion tri-exit angles tilt with respect to diffuser axis, wherein said the 3rd exit angle is preferably but and be nonessentially different from the first exit angle and/or be different from the second exit angle.
About this point, in practice, very advantageously be greater than the first exit angle with respect to the first diffuser shaft centerline measurement with respect to the second exit angle of diffuser shaft centerline measurement, guaranteed thus the transition of the special mitigation fluid is from diffuser to feeding tube, reason is that distance between export department's section of diffuser and the inwall of diffuser portion section is along increasing step by step towards the direction of feeding tube.As inventor's investigation shows, advantageously 15 degree the most nearly of the first exit angle, preferably in the scope in 6 degree～12 degree, and be in particular 12 degree, and the second exit angle preferably reaches most 30 degree, advantageously, in the scope in 12 degree～24 degree, be in particular 18 degree.About this point, the difference angle between the first exit angle and the second exit angle is selected as in the scope in 6 degree～12 degree in practice, and is preferably selected as in practice 8 degree.
The 3rd local portion section can be advantageously formed between the first local portion section and the second local portion section in the Duan Chu of export department, wherein preferably but and not necessarily the 3rd exit angle be greater than the first exit angle and be less than the second exit angle.
For an embodiment of particular importance in practice, the form of the cone of the first local portion section and/or the second local portion section and/or the 3rd local Duan Chengzhi of portion and/or straight frustoconical sheets, this means: the first exit angle is constant in the region of whole the first local portion section, and/or the second exit angle is constant in the region of whole the second local portion section, and/or the 3rd exit angle is constant in the region of whole the 3rd local portion section.
Nature can be understood: can be one-level formula pumping equipment according to pumping equipment of the present invention, but also can be the multistage pumping equipment having with respect to multiple pump rotors of diffuser axis arranged in series, two pump rotors of arranged in series wherein preferably can be set.
About this point, be generally vertical pump according to pumping equipment of the present invention, particularly in practice for delivery of water, waste water or the vertical pump for delivery of another liquid.
About this point, the invention still further relates to so diffuser, as what be described in the application's framework together with pump, and can be constructed to especially modified segment and/or removable parts, existing older pump also can be reequiped by diffuser of the present invention, thereby also make the efficiency of older pump to be increased and/or to improve by the present invention's property recalled.
Brief description of the drawings
Describe the present invention in detail with reference to accompanying drawing below.Show in the diagram:
Fig. 1 a is the vertical pump with the known diffuser of prior art;
Fig. 1 b is to illustrate in more detail the diffuser that shows Fig. 1 a;
Fig. 2 a shows the pumping equipment according to the outlet port at diffuser of the present invention with two local portion sections with partial cross section;
Fig. 2 b is to illustrate in more detail the diffuser that shows Fig. 2 a.
Embodiment
Fig. 1 a and/or Fig. 1 b relate to vertical pump known and that use for a long time, to understand better and define the present invention with respect to prior art, wherein vertical pump is described in detail in preface part, therefore here no longer further discusses.
With reference to figure 2a and Fig. 2 b, particularly preferred embodiment according to pumping equipment of the present invention will be illustrated by way of example below, described pumping equipment is specially vertical pump, for delivery of a large amount of water, and in this example in relatively little feed level.In Fig. 1 a, according to vertical pump of the present invention, it will be reference character 1 by overall labeling below, and the region that diffuser is only set in feeding post is illustrated with partial cross section, to reach clearly object.Fig. 2 b shows the diagram of true details, to understand better the diffuser of Fig. 2 a.
Vertical pump 1 according to the invention of Fig. 2 a and/or Fig. 2 b comprises feeding post 2, it has the rotor housing 3 extending around the diffuser axis A of vertical pump 1, wherein said feeding post is configured in for clearly former thereby unshowned import and is arranged between the diffuser 5 in diffuser portion section 4, and have feeding tube 6, it is in abutting connection with diffuser portion section 4 and have the outlet short end of same unshowned vertical pump 1.About this point, pump rotor 7 is configured in rotor housing 3, make in serviceability, treat that the fluid F being transferred can be inhaled into via import 20 from pump rotor 7, and again discharged by diffuser portion section 4, feeding tube 6 and via the outlet short end of the feeding post 2 of vertical pump 1.Diffuser 5 includes oral area section 51, it is configured between export department's section 52 and pump rotor 7 of diffuser 5, wherein the first local portion section 521 is formed in export department's section 52 places in abutting connection with entrance part section 51, and the first local portion section tilts with respect to diffuser axis A with the first exit angle α limiting in advance along the direction towards feeding tube 6.According to the present invention, the second local portion section 522 is formed on export department's section 52 places in abutting connection with the first local portion section 521, and the second local portion section tilts with respect to diffuser axis A to be different from the second exit angle β of the first exit angle α.
About this point, carry out driven pump rotor 7 via same unshowned live axle by what be configured in downstream for clearly former thereby unshowned motor.In diffuser 5, described diffuser 5 does not rotate with pump rotor 7, but being for example connected to statically the inwall of diffuser portion section 4 by means of diffuser vane by means of attachment means 9, described live axle is stored in the bearing 10 that can set with respect to diffuser axis A.
Therefore, be to be installed in the vertical pump of Fig. 2 a and/or Fig. 2 b according to diffuser 5 of the present invention from the roughly difference of the known vertical pump 1' of prior art according to the vertical pump 1 of Fig. 2 a and/or Fig. 2 b and according to Fig. 1 a and/or Fig. 1 b.Except according to diffuser 5 of the present invention, be therefore approximately identical to according to Fig. 1 a and/or Fig. 1 b from the known vertical pump 1' of prior art textural according to the vertical pump of Fig. 2 a and/or Fig. 2 b.
Very particularly preferably, the second exit angle β measuring with respect to diffuser axis A is greater than the first exit angle α measuring with respect to diffuser axis A in practice, as being clear that in Fig. 2 a and/or Fig. 2 b.In this specific embodiment, the first exit angle α is corresponding to about 10 degree, and the second exit angle β reaches about 18 degree, and making the angle difference between the first exit angle α and the second exit angle β is about 8 degree.About this point, the first exit angle α is constant in the region of whole the first local portion section 521, and the second exit angle β is constant in the region of whole the second local portion section 522.This means: the first local portion section 521 with the profile of local portion section 522 corresponding to straight tapered portion section and/or straight frustoconical sheets.
In order to understand better, imaginary line L' has been shown in Fig. 2 b, it is by relatively emphasizing the degree of the section 52' of export department, and the described section 52' of export department is formed and has tilt angle alpha according to Fig. 1 a and/or Fig. 1 b
1' the shape of single frustoconical sheets, as for known from the known diffuser 5' of prior art.
Can most clearly find out: export department's section 52 of diffuser 5 obviously tilts with respect to diffuser axis A more consumingly by means of the second additional local portion section 522 in abutting connection with the first local portion section 521, wherein the second local portion section 522 is extended with larger inclination angle beta with respect to diffuser axis A, this larger inclination have make from diffuser portion section 4 to feeding tube 6 effect that changes of the direction of the transition that relaxed very much of mobile fluid F and/or flow direction, this means that the suddenly or sharply transition of much less and/or the sharply direction of flow direction change, unnecessary whirlpool and turbulent flow in the known fluid F of prior art can be suppressed very consumingly, it has the effect that the unnecessary energy loss making can be avoided and increase the whole efficiency of pump in the time using according to diffuser 5 of the present invention.
This means: after the outlet of the known diffuser of prior art, streamwise is significantly suppressed by means of the present invention because of the known negative effect of prior art that whirlpool and turbulent flow cause, reason is to be divided at least two local portion sections 521 according to export department's section 52 of diffuser 5 of the present invention, 522, they have the different inclinations stronger with entirety compared with the known diffuser of prior art, when being left from foundation diffuser 5 of the present invention to feeding tube, fluid F is subject to significantly less sharply transition, reason is that the space between inwall and the diffuser surface of diffuser portion section 4 progressively expands more strongly at least two steps and substantially within shorter distance.In other words,, for according to diffuser 5 of the present invention, there is the direction variation not too sharply that fluid flows, particularly, in diffuser outlet port, there is thus turbulent flow still less, thereby hydraulic slip still less occurs, therefore compared with prior art, energy efficiency is significantly improved.
Should be appreciated that: the of the present invention all embodiments that describe in the application's framework are interpreted as just illustrating by way of example and/or are exemplary, and the present invention especially but not only comprise all suitable combination of described embodiment, as simple progress, those skilled in the art need not be taken twists and turns again due to his practical experience just can identify it.
Claims (15)
1. a pumping equipment, comprise feeding post (2), described feeding post (2) extends around the diffuser axis (A) of pumping equipment, and there is the import of being configured in and be disposed at the rotor housing (3) between the diffuser (5) in diffuser portion section (4), but also there is feeding tube (6), described feeding tube (6) has outlet short end the described diffuser portion's section of adjacency (4), wherein, in described rotor housing (3), dispose pump rotor (7), make in serviceability, fluid (F) to be conveyed can be sucked via described import by pump rotor (7), and can be via described diffuser portion's section (4), described feeding tube (6) is also discharged from the feeding post (2) of described pumping equipment again via described outlet short end, wherein, described diffuser (5) includes oral area section (51), described entrance part section (51) is configured between export department's section (52) and described pump rotor (7) of described diffuser (5), and locate to form the first local portion section (521) adjacent to described entrance part section (51) in described export department section (52), and described the first local portion section tilts with respect to described diffuser axis (A) with the first exit angle (α) limiting in advance along the direction towards described feeding tube (6), it is characterized in that: locate to form the second local portion section (522) in abutting connection with described the first local portion section (521) in described export department section (52), and described the second local portion section tilts with respect to described diffuser axis (A) to be different from second exit angle (β) of described the first exit angle (α).
2. pumping equipment as claimed in claim 1, wherein, locate to form at least one the 3rd local portion section in described export department section (52), and described the 3rd local Duan Yi of portion tri-exit angles tilt with respect to described diffuser axis (A), and wherein said the 3rd exit angle is preferably different from described the first exit angle (α) and/or is different from described the second exit angle (β).
3. as pumping equipment in any one of the preceding claims wherein, wherein, described the second exit angle (β) of measuring with respect to described diffuser axis (A) is greater than described the first exit angle (α) of measuring with respect to described diffuser axis (A).
4. as the pumping equipment of any one in aforementioned claim, wherein, described the first exit angle (α) is 15 degree the most nearly, preferably in the scope in 6 degree～12 degree, and be in particular 10 degree, and/or wherein said the second exit angle (β) is 30 degree the most nearly, in the scope of preferably spending in 12 degree～24, and be in particular 18 degree.
5. as the pumping equipment of any one in aforementioned claim, wherein, in the scope of the difference angle between described the first exit angle (α) and described the second exit angle (β) in 6 degree～12 degree, be preferably 8 degree.
6. the pumping equipment as described in any one in claim 2 or 3, wherein, described the 3rd local portion section is formed on described export department section (52) and locates to be positioned between described the first local portion section (521) and described the second local portion section (522); And described the 3rd exit angle is preferably greater than described the first exit angle (α) and is less than described the second exit angle (β).
7. as the pumping equipment of any one in aforementioned claim, wherein, described the first exit angle (α) is constant in the region of whole the first local portion section (521), and/or described the second exit angle is constant in the region of whole the second local portion section (522), and/or described the 3rd exit angle is constant in the region of whole the 3rd local portion section.
8. as the pumping equipment of any one in aforementioned claim, wherein, described pumping equipment comprises the multiple stage pumping equipment having with respect to multiple pump rotors (7) of described diffuser axis (A) arranged in series, and preferably includes two pump rotors (7) of arranged in series.
9. as the pumping equipment of any one in aforementioned claim, wherein, described pumping equipment is vertical pump, especially for carrying water, waste water or the vertical pump for delivery of different liquids.
10. the diffuser for pumping equipment (1), wherein said diffuser comprises export department's section (52) and entrance part section (51), and locate to form the first local portion section (521) adjacent to described entrance part section (51) in described export department section (52), and described the first local portion section tilts with respect to described diffuser axis (A) with the first exit angle (α) limiting in advance, it is characterized in that: locate to form the second local portion section (522) in abutting connection with described the first local portion section (521) in described export department section (52), and described the second local portion section tilts with respect to described diffuser axis (A) to be different from second exit angle (β) of described the first exit angle (α).
11. diffusers as claimed in claim 10, wherein, locate to form at least one the 3rd local portion section in described export department section (52), and described the 3rd local Duan Yi of portion tri-exit angles tilt with respect to described diffuser axis (A), and wherein said the 3rd exit angle is preferably different from described the first exit angle (α) and/or is different from described the second exit angle (β).
12. diffusers as described in any one in claim 10 or 11, wherein, described the second exit angle (β) of measuring with respect to described diffuser axis (A) is greater than described the first exit angle (α) of measuring with respect to described diffuser axis (A).
13. diffusers as described in any one in claim 10-12, wherein, described the first exit angle (α) is 15 degree the most nearly, preferably in the scope in 6 degree～12 degree, and be in particular 10 degree, and/or wherein said the second exit angle (β) is 30 degree the most nearly, in the scope of preferably spending in 12 degree～24, and be in particular 18 °; And/or in the scope of the difference angle between wherein said the first exit angle (α) and described the second exit angle (β) in 6 degree～12 degree, and be preferably 8 degree.
14. diffusers as described in any one in claim 8-10, wherein, described the 3rd local portion section is formed on described export department section (52) and locates to be positioned between described the first local portion section (521) and described the second local portion section (522), and described the 3rd exit angle is preferably greater than described the first exit angle (α) and is less than described the second exit angle (β).
15. diffusers as described in any one in claim 8-11, wherein, described the first exit angle (α) is constant in the region of whole the first local portion section (521), and/or described the second exit angle is constant in the region of whole the second local portion section (522), and/or described the 3rd exit angle is constant in the region of whole the 3rd local portion section.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13156369.4 | 2013-02-22 | ||
| EP13156369 | 2013-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104019060A true CN104019060A (en) | 2014-09-03 |
Family
ID=47750495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410059233.9A Pending CN104019060A (en) | 2013-02-22 | 2014-02-21 | Pumping device, and diffuser used for same |
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| Country | Link |
|---|---|
| US (1) | US20140241870A1 (en) |
| EP (1) | EP2770215A1 (en) |
| CN (1) | CN104019060A (en) |
| BR (1) | BR102014003395A8 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6875181B2 (en) * | 2017-04-11 | 2021-05-19 | 株式会社酉島製作所 | Vertical pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101861464A (en) * | 2008-01-18 | 2010-10-13 | 三菱重工业株式会社 | Method of setting performance characteristic of pump and method of manufacturing diffuser vane |
| US20110027077A1 (en) * | 2009-07-31 | 2011-02-03 | Baker Hughes Incorporated | Shaftless centrifugal pump |
| WO2012024356A1 (en) * | 2010-08-17 | 2012-02-23 | Mpc, Inc. | Non-metallic vertical turbine pump |
| US20130017075A1 (en) * | 2006-10-30 | 2013-01-17 | Schlumberger Technology Corporation | Electrical Submersible Pump |
-
2014
- 2014-01-21 EP EP14152030.4A patent/EP2770215A1/en not_active Withdrawn
- 2014-02-13 BR BR102014003395A patent/BR102014003395A8/en not_active IP Right Cessation
- 2014-02-20 US US14/185,626 patent/US20140241870A1/en not_active Abandoned
- 2014-02-21 CN CN201410059233.9A patent/CN104019060A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130017075A1 (en) * | 2006-10-30 | 2013-01-17 | Schlumberger Technology Corporation | Electrical Submersible Pump |
| CN101861464A (en) * | 2008-01-18 | 2010-10-13 | 三菱重工业株式会社 | Method of setting performance characteristic of pump and method of manufacturing diffuser vane |
| US20110027077A1 (en) * | 2009-07-31 | 2011-02-03 | Baker Hughes Incorporated | Shaftless centrifugal pump |
| WO2012024356A1 (en) * | 2010-08-17 | 2012-02-23 | Mpc, Inc. | Non-metallic vertical turbine pump |
Also Published As
| Publication number | Publication date |
|---|---|
| US20140241870A1 (en) | 2014-08-28 |
| BR102014003395A8 (en) | 2016-03-22 |
| EP2770215A1 (en) | 2014-08-27 |
| BR102014003395A2 (en) | 2014-11-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: SULZER MANAGEMENT AG Free format text: FORMER OWNER: SULZER PUMP AG Effective date: 20150813 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20150813 Address after: Winterthur Switzerland Applicant after: SULZER PUMPEN AG Address before: Winterthur Switzerland Applicant before: Sulzer Pump AG |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140903 |