CN101089398A - Full high-lift submersible electric pump - Google Patents
Full high-lift submersible electric pump Download PDFInfo
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- CN101089398A CN101089398A CN 200610031802 CN200610031802A CN101089398A CN 101089398 A CN101089398 A CN 101089398A CN 200610031802 CN200610031802 CN 200610031802 CN 200610031802 A CN200610031802 A CN 200610031802A CN 101089398 A CN101089398 A CN 101089398A
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- water
- pump
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- impeller
- water outlet
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Abstract
The present invention relates to a full lift electric diving pump. It includes the following several portions: hydro-extracting cage, water inlet, blade wheel, middle guide blade, middle pump body, tail guide blade, water outlet pump body, non-return valve, shaft sleeve and pump shaft. Said invention also provides the connection mode of all the above-mentioned portions, and also provides the working principle of said electric diving pump and its concrete operation method.
Description
Technical field
The present invention relates to a kind of electronic product, particularly a kind of full high-lift submersible electric pump, it can effectively control actual flow, prevents the overpower use and the damage of generation motor.
Background technique
Submerged Motor Pumps is motor directly to be linked to each other with water pump unite two into one, together pull the plug, form a kind of simple to operate, unique pump class of compact structure, comprise single-stage pump and multistage pump, mainly be applicable to the mixing material of carrying sewage or containing insoluble solid thing such as silt,, also can be used for flood control and pump general clean water industrial and mineral, building, life sewage effluent dirt particularly suitable.Submerged Motor Pumps is owing to saved many management equipments and building waterborne, and running noises is little under water, and is in light weight, need not fixedly mount, outlet adopts flexible pipe to connect, and uses advantages such as lift can change, and is widely used in field such as water lift, engineering construction and the stain of drainning off floodwaters in agricultural irrigation, the well.
The actual flow Q of actual input power P of the motor of Submerged Motor Pumps and water pump, actual lift H have direct relation, P=ρ QH.Stipulate in JB/T8092 " small-sized diving electric pump " standard: actual flow Q≤1.2 of centrifugal Submerged Motor Pumps times rated flow Q
NThe time, the actual input power P of motor≤rated input power P
NAnd for actual flow Q＞1.2 rated flow Q
NThe time, standard is not done requirement.
In the prior art, the habitual design method of centrifugal Submerged Motor Pumps when design is: the ratio of minimum equivalent aera A of Submerged Motor Pumps overcurrent part and water output connector water outlet place area B is: K 〉=1, She Ji centrifugal Submerged Motor Pumps can guarantee times rated flow Q in actual flow Q≤1.2 according to JB/T8092 " small-sized diving electric pump " standard-required like this
NThe time, the actual input power P of motor≤rated input power P
NYet, as actual flow Q＞1.2 rated flow Q
NThe time, the actual input power P of motor＞rated input power P
NReason is when the actual flow Q of water pump rises, actual lift H descends, owing to ratio K 〉=1 of the minimum equivalent aera A of Submerged Motor Pumps overcurrent part with water output connector water outlet place area B, the speed that causes actual flow Q to rise is inconsistent with the speed of actual lift H decline---and the actual flow Q rate of climb is fast, and actual lift H rate of descent is slow, when historical facts or anecdotes border flow Q rose, the actual input power P of motor also rose thereupon, as actual flow Q＞rated flow Q
NThe time, the actual input power P of motor＞rated input power P
N, the work of Submerged Motor Pumps meeting overpower, it is too high that motor can temperature rise occur, and motor internal stator oil is splashed to rise and is caused motor aircraft bombing shell, burns defectives such as motor.So require the user in use, actual lift H must meet rated head H
N, actual flow Q≤1.2 times of rated flow Q when using with assurance
NBut because the flexibility that Submerged Motor Pumps uses, its actual lift H often can not satisfy above-mentioned requirements and the phenomenon that overpower is used occur.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency of prior art and provide a kind of and prevent that by the control actual flow overpower from using, because of improper use the full high-lift submersible electric pump that motor damages takes place to prevent the user.
Cross the defective of motor overpower work when low because of actual lift in order to solve centrifugal Submerged Motor Pumps, the present invention has found all the overcurrent parts minimum equivalent aera A of Submerged Motor Pumps from the water inlet of water pump first order impeller to water output connector water outlet place and the ratio of the ratio K of water output connector water outlet place area B, as long as K is controlled at certain limit, the turnover water yield with regard to the energy control of pump, make Submerged Motor Pumps when actual lift H descends, actual flow Q speedup is slow, make Q*H ≈ constant, P=ρ QH≤rated power, the actual input power P of motor is no more than rated power P
NThereby, can in the total head scope, use, solve the difficult problem that the user uses well.
Technological scheme of the present invention is: full high-lift submersible electric pump comprises dewatering device, water inlet joint, impeller, middle stator, middle pump body, final stage stator, goes out water pump body, water output connector and pump shaft, dewatering device and impeller are installed on the pump shaft and by set screw nut successively and fix, in stator, middle pump body, final stage stator and go out water pump body and be installed in into the water joint successively and go up and fix by standing screw, water output connector is installed in out on the water pump body; Reduce the internal diameter at the preceding arbitrary place of water pump water outlet joint water outlet place, or increase the external diameter at the preceding arbitrary place of water pump water outlet joint water outlet place, make minimum equivalent aera A of overcurrent part and the ratio of the ratio K of water output connector water outlet place area B be: 0.2≤K≤0.6.
The further technological scheme of the present invention is: reduce water inlet joint water inlet place or middle pump body water inlet place at any impeller eye place or go out the internal diameter of water pump body water outlet place, or reduce any impeller port ring internal diameter, or the external diameter of increase dewatering device or axle sleeve or impeller hub, make minimum equivalent aera A of overcurrent part and the ratio of the ratio K of water output connector water outlet place area B be: 0.2≤K≤0.6.
The further again technological scheme of the present invention is: going out check valve also is installed between water pump body and the water output connector, reduce the internal diameter of water pump check valve water outlet place, make minimum equivalent aera A of overcurrent part and the ratio of the ratio K of water output connector water outlet place area B be: 0.2≤K≤0.6.
The present invention further technological scheme is: between middle stator and water inlet joint pump cover is installed also, ingress at first impeller of water pump, reduce the internal diameter of pump cover water inlet place that matches with first impeller, make minimum equivalent aera A of overcurrent part and the ratio of the ratio K of water output connector water outlet place area B be: 0.2≤K≤0.6.
The invention has the beneficial effects as follows, needn't consider the variation of actual lift in use, very easy to use, simple in structure, only need calculate the minimum equivalent aera A of overcurrent part when designing and producing, the ratio of the minimum equivalent aera A of overcurrent part and the ratio K of water output connector water outlet place area B controlled well is: 0.2≤K≤0.6 gets final product.
Below in conjunction with the drawings and specific embodiments detailed structure of the present invention is further described.
Description of drawings
Accompanying drawing 1 is the structural representation of the embodiment of the invention 1;
Accompanying drawing 2 is the structural representation of the embodiment of the invention 2;
Accompanying drawing 3 is the structural representation of the embodiment of the invention 3;
Accompanying drawing 4 is the structural representation of the embodiment of the invention 4;
Accompanying drawing 5 is the structural representation of the embodiment of the invention 5;
Accompanying drawing 6 is the structural representation of the embodiment of the invention 6;
Accompanying drawing 7 is the structural representation of the embodiment of the invention 7;
Accompanying drawing 8 is the structural representation of the embodiment of the invention 8;
Accompanying drawing 9 is the structural representation of the embodiment of the invention 9.
Embodiment
As shown in Figure 1, full high-lift submersible electric pump comprise dewatering device 1,2, four impellers of water inlet joint 3, three middle stators 4, three middle pump bodies 5, final stage stators 6, go out water pump body 7, check valve 8, water output connector 9, three axle sleeves 10 and pump shafts 11; Dewatering device 1, first impeller 3, first axle sleeve 10, second impeller 3 ..., the 3rd axle sleeve 10 and the 4th impeller 3 be installed in successively on the pump shaft 11 and by set screw nut and fix, stator 4 in first, first middle pump body 5 ... the 3rd middle stator 4, the 3rd middle pump body 5, final stage stator 6 and go out water pump body and be installed in successively on the water joint 2 and and fix by standing screw, water output connector 9 is installed in out on the water pump body 7 by check valve 8; Its technical characteristics is: in the ingress of first impeller 3 of water pump, the water inlet that reduces to match with first impeller 3 saves the inside diameter D of 2 water inlets place 21
1, the ratio of change and water output connector 9 water outlet place diameter D, K=A/B, A=π (D
1 2-d
2), B=π * D
2, make minimum equivalent aera A of overcurrent part and the ratio of the ratio K of water output connector 9 water outlet place area B be: 0.2≤K≤0.6, to reach restriction water pump water outlet flow, realize that total head uses not superpower purpose.
The movement process of water is: water flows into from water inlet joint 2 outsides, by impeller 3, stator 4, middle pump body 5, again from water outlet stator 6 with go out water pump body 7 and flow to check valve 8, flows out from water output connector 9 at last.
As shown in Figure 2, the difference of the structure of full high-lift submersible electric pump is: at the water inlet of full high-lift submersible electric pump joint 2 with pump cover 12 also is installed between the stator 4 in first, all the other structures are with embodiment 1; Its technical characteristics is: in the ingress of first impeller 3 of water pump, reduce the inside diameter D of pump cover 12 water inlets place 121 that match with first impeller 3
1, the ratio of change and water output connector 9 water outlet place diameter D, K=A/B, A=π (D
1 2-d
2), B=π * D
2, make minimum equivalent aera A of overcurrent part and the ratio of the ratio K of water output connector 9 water outlet place area B be: 0.2≤K≤0.6, to reach restriction water pump water outlet flow, realize that total head uses not superpower purpose.
The movement process of water is identical with embodiment 1.
As shown in Figure 3, the structure of full high-lift submersible electric pump is with embodiment 1; Its technical characteristics is: in the ingress of second impeller 3 of water pump, and the inside diameter D of first middle pump body 5 water inlets place 51 that reduce to match with second impeller 3
1, the ratio of change and water output connector 9 water outlet place diameter D, K=A/B, A=π (D
1 2-d
2), B=π * D
2, make minimum equivalent aera A of overcurrent part and the ratio of the ratio K of water output connector 9 water outlet place area B be: 0.2≤K≤0.6, to reach restriction water pump water outlet flow, realize that total head uses not superpower purpose.
The movement process of water is identical with embodiment 1.
As shown in Figure 4, the structure of full high-lift submersible electric pump is with embodiment 1; Its technical characteristics is: in the ingress of the 3rd impeller 3 of water pump, reduce the inside diameter D of the 3rd impeller 3 chomas 31 of water pump
2, the ratio of change and water output connector 9 water outlet place diameter D, K=A/B, A=π (D
2 2-d
2), B=π * D
2, make minimum equivalent aera A of overcurrent part and the ratio of the ratio K of water output connector 9 water outlet place area B be: 0.2≤K≤0.6, to reach restriction water pump water outlet flow, realize that total head uses not superpower purpose.
The movement process of water is identical with embodiment 1.
As shown in Figure 5, the structure of full high-lift submersible electric pump is with embodiment 1; Its technical characteristics is: before water pump water outlet joint 9, reduce the inside diameter D of water pump check valve 8 water outlets place 81
3, the ratio of change and water output connector 9 water outlet place diameter D, K=A/B, A=π * D
3 2, B=π * D
2, make minimum equivalent aera A of overcurrent part and the ratio of the ratio K of water output connector 9 water outlet place area B be: 0.2≤K≤0.6, to reach restriction water pump water outlet flow, realize that total head uses not superpower purpose.
The movement process of water is identical with embodiment 1.
As shown in Figure 6, the structure of full high-lift submersible electric pump is with embodiment 1; Its technical characteristics is: in the ingress of first impeller 3 of water pump, increase the outside diameter d of the dewatering device 1 that matches with first impeller 3, the ratio of change and water output connector 9 water outlet place diameter D, K=A/B, A=π (D
1 2-d
2), B=π * D
2, make minimum equivalent aera A of overcurrent part and the ratio of the ratio K of water output connector 9 water outlet place area B be: 0.2≤K≤0.6, to reach restriction water pump water outlet flow, realize that total head uses not superpower purpose.
The movement process of water is identical with embodiment 1.
As shown in Figure 7, the structure of full high-lift submersible electric pump is with embodiment 1; Its technical characteristics is: in the ingress of the 4th impeller 3 of water pump, increase the outside diameter d of the 4th axle sleeve 10 that matches with the 4th impeller 3, the ratio of change and water output connector 9 water outlet place diameter D, K=A/B, A=π (D
1 2-d
2), B=π * D
2, make minimum equivalent aera A of overcurrent part and the ratio of the ratio K of water output connector 9 water outlet place area B be: 0.2≤K≤0.6, to reach restriction water pump water outlet flow, realize that total head uses not superpower purpose.
The movement process of water is identical with embodiment 1.
As shown in Figure 8, full high-lift submersible electric pump comprises dewatering device 1, water inlet joint 2, three impellers 3, two middle stators 4, two middle pump bodies 5, final stage stator 6, go out water pump body 7, water output connector 9 and pump shaft 11, dewatering device 1, first impeller 3, the 3rd impeller 3 is installed in successively on the pump shaft 11 and by set screw nut and fixes, second and the 3rd impeller 3 are provided with the impeller hub 32 that is used for substituting axle sleeve 10, stator 4 in first, first middle pump body 5, second middle stator 4, second middle pump body 5, final stage stator 6 and go out water pump body 7 and be installed in successively on the water joint 2 and and fix by standing screw, water output connector 9 is installed in out on the water pump body 7; Its technical characteristics is: in the ingress of second impeller 3 of water pump, increase the outside diameter d of the impeller hub 32 that matches with second impeller 3, the ratio of change and water output connector 9 water outlet place diameter D, K=A/B, A=π (D
1 2-d
2), B=π * D
2, make minimum equivalent aera A of overcurrent part and the ratio of the ratio K of water output connector 9 water outlet place area B be: 0.2≤K≤0.6, to reach restriction water pump water outlet flow, realize that total head uses not superpower purpose.
The movement process of water is: water flows into from water inlet joint 2 outsides, by impeller 3, middle stator 4, middle pump body 5, final stage stator 6 with go out water pump body 7, flows out from water output connector 9 at last.
As shown in Figure 9, the structure of full high-lift submersible electric pump is with embodiment 8; Its technical characteristics is: before water pump water outlet joint 9, reduce the inside diameter D of the water pump water outlet pump housing 7 water outlets place 71
3, the ratio of change and water output connector 9 water outlet place diameter D, K=A/B, A=π * D
3 2, B=π * D
2, make minimum equivalent aera A of overcurrent part and the ratio of the ratio K of water output connector 9 water outlet place area B be: 0.2≤K≤0.6, to reach restriction water pump water outlet flow, realize that total head uses not superpower purpose.
The movement process of water is identical with embodiment 8.
The present invention is not limited to above-mentioned concrete structure; so long as the internal diameter at arbitrary place before the minimizing water pump water outlet joint outlet port; perhaps increase the external diameter at arbitrary place before the water pump water outlet joint outlet port; make minimum equivalent aera A of overcurrent part and the ratio of the ratio K of water output connector outlet port area B be: the Submerged Motor Pumps of 0.2≤K≤0.6, just drop within protection scope of the present invention.
Claims (5)
1, a kind of full high-lift submersible electric pump, it comprises dewatering device, water inlet joint, impeller, middle stator, middle pump body, final stage stator, goes out water pump body, water output connector and pump shaft, dewatering device and impeller are installed on the pump shaft and by set screw nut successively and fix, in stator, middle pump body, final stage stator and go out water pump body and be installed in into the water joint successively and go up and fix by standing screw, water output connector is installed in out on the water pump body; It is characterized in that reducing the internal diameter at the preceding arbitrary place of water pump water outlet joint water outlet place, or increase the external diameter at the preceding arbitrary place of water pump water outlet joint water outlet place, make minimum equivalent aera A of overcurrent part and the ratio of the ratio K of water output connector water outlet place area B be: 0.2≤K≤0.6.
2, full high-lift submersible electric pump according to claim 1, it is characterized in that reducing water inlet joint water inlet place or middle pump body water inlet place at any impeller eye place or going out the internal diameter of water pump body water outlet place, or reduce any impeller port ring internal diameter, or the external diameter of increase dewatering device or axle sleeve or impeller hub, make minimum equivalent aera A of overcurrent part and the ratio of the ratio K of water output connector water outlet place area B be: 0.2≤K≤0.6.
3, full high-lift submersible electric pump according to claim 1 and 2, it is characterized in that check valve also is installed between water pump body and the water output connector, reduce the internal diameter of water pump check valve water outlet place, make minimum equivalent aera A of overcurrent part and the ratio of the ratio K of water output connector water outlet place area B be: 0.2≤K≤0.6.
4, full high-lift submersible electric pump according to claim 1 and 2, it is characterized in that between middle stator and water inlet joint, pump cover being installed also, ingress at first impeller of water pump, reduce the internal diameter of pump cover water inlet place that matches with first impeller, make minimum equivalent aera A of overcurrent part and the ratio of the ratio K of water output connector water outlet place area B be: 0.2≤K≤0.6.
5, full high-lift submersible electric pump according to claim 3, it is characterized in that between middle stator and water inlet joint, pump cover being installed also, ingress at first impeller of water pump, reduce the internal diameter of pump cover water inlet place that matches with first impeller, make minimum equivalent aera A of overcurrent part and the ratio of the ratio K of water output connector water outlet place area B be: 0.2≤K≤0.6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610031802 CN101089398A (en) | 2006-06-12 | 2006-06-12 | Full high-lift submersible electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610031802 CN101089398A (en) | 2006-06-12 | 2006-06-12 | Full high-lift submersible electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101089398A true CN101089398A (en) | 2007-12-19 |
Family
ID=38942865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610031802 Pending CN101089398A (en) | 2006-06-12 | 2006-06-12 | Full high-lift submersible electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101089398A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852826A (en) * | 2012-09-17 | 2013-01-02 | 山东德源泵业有限公司 | Large water flow self-balancing submersible electric pump |
| CN102966575A (en) * | 2012-11-29 | 2013-03-13 | 无锡市金城泵业制造有限公司 | Rapid-connection submersible pipeline pump |
-
2006
- 2006-06-12 CN CN 200610031802 patent/CN101089398A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852826A (en) * | 2012-09-17 | 2013-01-02 | 山东德源泵业有限公司 | Large water flow self-balancing submersible electric pump |
| CN102966575A (en) * | 2012-11-29 | 2013-03-13 | 无锡市金城泵业制造有限公司 | Rapid-connection submersible pipeline pump |
| CN102966575B (en) * | 2012-11-29 | 2015-03-04 | 无锡市金城泵业制造有限公司 | Rapid-connection submersible pipeline pump |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20071219 |