CN203488430U - Semi-open impeller pressurization structure - Google Patents
Semi-open impeller pressurization structure Download PDFInfo
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- CN203488430U CN203488430U CN201320324770.2U CN201320324770U CN203488430U CN 203488430 U CN203488430 U CN 203488430U CN 201320324770 U CN201320324770 U CN 201320324770U CN 203488430 U CN203488430 U CN 203488430U
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- blade
- blades
- impeller
- backboard
- cooling water
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Abstract
The utility model discloses a semi-open impeller pressurization structure which comprises a backboard, blades, balancing holes and shaft holes, wherein the curved blades leaned backwards in the anticlockwise rotational direction are uniformly distributed on an outward end face of the backboard, a surface on the blade concaved forwards is a working surface and the convex surface backwards is a back surface. An outlet angle of the blade Beta 2 is between 70 DEG and 90 DEG, the included angle between outlet internal edges of the two adjacent blades on an external circle of an impeller Alpha is between 45 DEG and 60 DEG and the top face of the blade is a cone with Theta between 130 DEG and 160 DEG. According to the utility model, Beta 2is increased by the backward inclining design of the blades and the traditional backward bent blade in a cooling water pump impeller is changed into the blades which are inclined backwards and bent. Through improvement design in blade shape, the lift of the cooling water pump is increased by 7% to 10% under a rated flow in comparison with the prior art, so that the capability of output cooling water for running through a water channel is improved and cooling effect of a diesel engine is directly improved.
Description
Technical field
The utility model relates to a kind of water pump vane structure, and specifically, the utility model relates to a kind of half-opened impeller pressure structure of supporting centrifugal water pump.
Background technique
The cooling waterpump of universal matched with diesel engine is centrifugal water pump, and this kind carries the pump of clear water to be easy to meet working condition nearby, needs only parameter designing hydraulic model routinely, just can obtain flow, lift and air horsepower and mate under greater efficiency situation.The hydraulic model core members of centrifugal water pump is impeller, and the impeller of existing goods cooling waterpump is semi-open type structure, adopts exit angle β
2the backward leaning vane that < is 90 °.Half-opened impeller is simple in structure, easily manufactures, and half-opened impeller can meet diesel engine cooling operating mode demand completely theoretically.But common cooling effect does not reach expection in actual use.Its reason is that the built-in cooling water channel of diesel engine mainly adopts casting, non-mach water channel inner wall coarse, adding some castabilities there is narrow problem in poor product water channel part, cause water channel flow area to be less than design area, cooling water flow by time liquid resistance larger, hydraulic loss too much must reduce cooling effect.
Model utility content
The utility model hinders large realistic problem mainly for existing diesel built-in water passage liquid, a kind of half-opened impeller pressure structure is proposed, this structure is taked reverse rotational direction layback blade design, this improvement is the effective technology measure that strengthens impeller blade angle of run, makes up the hydraulic loss causing greatly because of the resistance of water channel liquid by suitable raising cooling water lift of pump.
The utility model is achieved through the following technical solutions technical goal.
Half-opened impeller pressure structure, it is comprised of backboard, blade, equalizing orifice and axis hole.Its improvements are: described backboard is towards the uniform curved surface bucket by being rotated counterclockwise direction layback on exterior edge face, and the blade forward one side of indent is working surface, and the one side of evagination is the back side backwards, the exit angle β of blade
2=70 °～90 °, on impeller cylindrical, between adjacent blades outlet inner edge, angle is α=45 °～60 °, and blade end face be taper shape, its cone angle θ=130 °～160 °.
In said structure, blade is unidirectional circular arc camber body or two-way circular arc camber body, half and outer half back-flexing in way curved surface body blade.
The utility model compared with prior art, has following good effect:
1, the blade increasing exit angle of reverse rotational direction layback is easy, does not increase fabricating cost;
2, strengthen blade outlet angle, promote impeller water outlet water flow dynamic energy, the lift of increase can be offset the hydraulic loss producing because of the resistance of water channel liquid, directly improves cooling effect.
Accompanying drawing explanation
Fig. 1 is the utility model structural plan schematic diagram, and the blade in figure is unidirectional circular arc camber body.
Fig. 2 is the blade structure floor map of the another kind of shape of the utility model, and the blade in figure is two-way circular arc camber body.
Fig. 3 is that generalized section is looked on the right side of Fig. 1 or Fig. 2.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, the utility model is described in further detail.
Half-opened impeller pressure structure shown in Fig. 1, it is comprised of backboard 1, blade 2, equalizing orifice 3 and axis hole 4.Backboard 1 in this impeller is circular plate, is provided with between two parties axis hole 4, and towards the uniform curved surface bucket 2 by being rotated counterclockwise direction layback on exterior edge face, the blade 2 forward one side of indent is working surface, and the one side of evagination is the back side backwards.The present embodiment impeller diameter is Φ 70mm, and it is conical that blade 2 end faces are as shown in Figure 3, its cone angle θ=154 ° ± 3 ' and, blade 2 end faces adopt conical, directly increase the width of blade of close suction port, can improve the inlet capacity of impeller.Unidirectional circular arc camber body blade 2 exit angle of layback design are β as shown in Figure 1
2=90 °, on impeller cylindrical, between adjacent blades 2 outlet inner edges, angle is α=60 °.By above-mentioned increase β
2design, changes the traditional backward leaning vane 2 of cooling waterpump impeller into be reverse rotational direction layback curved surface bucket 2.The present embodiment is under rated flow, and lift rises 7～8% than prior art, air horsepower 10% left and right of rising, and air horsepower increase only has several kilowatts of zero points conventionally.In this specified power equipment of diesel engine, increasing by a point load is not problem, in output power, can ignore.Most important is to have improved cooling water lift of pump, makes the cooling water of output connect water channel capability improving, directly improves the cooling-down effect of diesel engine.
The utility model is adjusted blade 2 designs in impeller according to supporting cooling waterpump specification.The present embodiment impeller diameter is Φ 100mm, first at backboard 1 towards uniform blade 2 as shown in Figure 2 on exterior edge face, blade 2 is two-way arc-shaped curved surface body, the interior half of this blade 2 and outer half back-flexing by being rotated counterclockwise direction layback.Because of blade 2 alterations of form and length lengthening, carry the ability of water to make moderate progress, therefore adjust the exit angle β of blade 2
2=70 °, cone angle θ=130 ° of blade 2 end faces, on impeller cylindrical, between the outlet inner edge of adjacent blades 2, angle is α=60 °, all the other defeated parameter constants that help.By the impeller of above-mentioned parameter adjusted design, to be lift rise 8～10% than prior art to the effect of obtaining, air horsepower 5% left and right of rising.
Claims (3)
1. a half-opened impeller pressure structure, it is comprised of backboard (1), blade (2), equalizing orifice (3) and axis hole (4); It is characterized in that: described backboard (1) is towards the uniform curved surface bucket (2) by being rotated counterclockwise direction layback on exterior edge face, and blade (2) the forward one side of indent is working surface, and the one side of evagination is the back side backwards, the exit angle β of blade (2)
2=70 °～90 °, between adjacent blades on impeller cylindrical (2) outlet inner edge, angle is α=45 °～60 °, and blade (2) end face be taper shape, its cone angle θ=130 °～160 °.
2. half-opened impeller pressure structure according to claim 1, is characterized in that: described blade (2) is unidirectional circular arc camber body.
3. half-opened impeller pressure structure according to claim 1, is characterized in that: described blade (2) is two-way circular arc camber body, the interior half of blade (2) and outer half back-flexing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320324770.2U CN203488430U (en) | 2013-06-03 | 2013-06-03 | Semi-open impeller pressurization structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320324770.2U CN203488430U (en) | 2013-06-03 | 2013-06-03 | Semi-open impeller pressurization structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203488430U true CN203488430U (en) | 2014-03-19 |
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ID=50259267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320324770.2U Expired - Fee Related CN203488430U (en) | 2013-06-03 | 2013-06-03 | Semi-open impeller pressurization structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN203488430U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277335A (en) * | 2013-06-03 | 2013-09-04 | 高邮市高农机械配件有限公司 | Semi-open impeller supercharge structure |
| CN105156352A (en) * | 2015-09-30 | 2015-12-16 | 无锡惠山泵业有限公司 | Impeller reversion draining type water pump |
| CN109779960A (en) * | 2017-11-12 | 2019-05-21 | 湖北华联泵业有限公司 | A kind of distributed automobile water pump vane |
-
2013
- 2013-06-03 CN CN201320324770.2U patent/CN203488430U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277335A (en) * | 2013-06-03 | 2013-09-04 | 高邮市高农机械配件有限公司 | Semi-open impeller supercharge structure |
| CN105156352A (en) * | 2015-09-30 | 2015-12-16 | 无锡惠山泵业有限公司 | Impeller reversion draining type water pump |
| CN109779960A (en) * | 2017-11-12 | 2019-05-21 | 湖北华联泵业有限公司 | A kind of distributed automobile water pump vane |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20200603 |
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| CF01 | Termination of patent right due to non-payment of annual fee |