CN218581875U - Impeller structure of staggered flow passage double-suction pump - Google Patents
Impeller structure of staggered flow passage double-suction pump Download PDFInfo
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- CN218581875U CN218581875U CN202223017539.7U CN202223017539U CN218581875U CN 218581875 U CN218581875 U CN 218581875U CN 202223017539 U CN202223017539 U CN 202223017539U CN 218581875 U CN218581875 U CN 218581875U
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Abstract
The utility model relates to a staggered flow channel double entry pump impeller structure, including the pump body, impeller component and pump shaft, the impeller component passes through the pump shaft and rotates the setting in the inner chamber of the pump body, and the impeller component includes staggered flow channel left side impeller and staggered flow channel right side impeller, and staggered flow channel left side impeller and staggered flow channel right side impeller just can dismantle the cartridge and connect and constitute the impeller component. The flow channel structure is reasonable in structure, the resonance structure of the symmetrical liquid flow is disturbed through the staggered flow channel structure, the resonance probability of the symmetrical liquid flow is reduced, the noise generated by liquid flow resonance can be reduced, and the physical health of workers is maintained; the detachable impeller structure is easier to overhaul, maintain and replace, the single-side impeller can be replaced or reserved according to the abrasion loss, and the service life of the pump is prolonged.
Description
Technical Field
The utility model relates to a double entry pump impeller structure especially relates to the double entry pump impeller structure of crisscross runner.
Background
The double-suction pump is an important form of the centrifugal pump, and has the characteristics of high lift, large flow and the like, so that the double-suction pump is widely applied to engineering and agricultural water. The pump type impeller is actually formed by combining two back-to-back impellers, and is equivalent to two single-suction impellers with the same diameter which work simultaneously, and the flow can be doubled under the same impeller outer diameter; the pump shell is horizontally opened, the inspection and the maintenance are convenient, the impeller structure is symmetrical, no axial force exists, the operation is stable, and the water flow flowing out of the impeller is converged into a volute. However, due to the extremely symmetrical and uniform structure of the double-suction pump, structural resonance is easy to occur in the operation process of the double-suction pump, the service life of the pump is shortened, noise is increased, pressure pulsation, liquid streaming, bias flow, flow separation and other flow caused by the resonance structure can act on the pump body to cause vibration and noise increase of the double-suction pump, and meanwhile, the impeller outlet with large longitudinal and transverse ratio can cause larger hydraulic loss in the impeller and low efficiency.
At present, the impeller structure of the double suction pump is improved by artificially reducing the pressure pulsation and the efficiency problem of the double suction pump, and the impeller structure is provided with the following patent numbers: CN201922171231.X discloses a novel impeller, the tip of this impeller's blade is arranged and is "V" shape and be mutual dislocation arrangement in annular baffle's both sides, and this patent has utilized the arrangement of crisscross blade, has reached its reduction pressure pulsation, has destroyed the purpose of resonance, still exists not enoughly: 1. the staggered blades of the wind turbine generator are not provided with a more detailed defined staggered arrangement angle, and the staggered form can be diversified, so that the capability of reducing vibration and noise is not good. 2. The staggered blades have large outlet aspect ratio, so that hydraulic loss is large, and the efficiency of the pump is low. 3. The impeller of the double suction pump is larger in size due to the structure.
According to the existing double-suction pump structure, in the process that fluid flows out of an impeller outlet, due to the problem of the structure of the impeller outlet on one side, the outlet is of a structure with a large vertical and horizontal ratio, namely, the outlet tends to be more rectangular, and liquid or two-phase and multiphase flow moves along with blades, so that a working medium entering an impeller flow channel has large hydraulic loss, the impact and abrasion on the outlet part of the impeller are accelerated, the service life of the impeller is shortened, the maintenance and replacement are needed, the double-suction pump structure is complex, the replacement is not easy, and the use cost and the labor input of the pump are greatly increased; the size of the double-impeller structure of the double-suction pump is larger, and the symmetrical impeller structure can generate resonance and noise in the whole working process, has larger influence on the stable work of the pump and has influence on the body health of workers to different degrees; under the action of cavitation and impact abrasion possibly caused by resonance, the service life of the impeller and the pump body is reduced, so that the whole service life of the pump is shortened, and the production cost is saved and the product is popularized.
Disclosure of Invention
In order to solve the technical problem, the utility model aims at providing a crisscross runner double entry pump impeller structure, including the pump body, impeller component and pump shaft, the impeller component passes through the pump shaft and rotates the setting in the inner chamber of the pump body, and the impeller component includes crisscross runner left impeller and crisscross runner right impeller, and crisscross runner left impeller and crisscross runner right impeller of cross runner can dismantle the cartridge and connect and constitute the impeller component.
Preferably, the left staggered flow channel impeller and the right staggered flow channel impeller are in a bilateral symmetry structure, clamping and positioning components are arranged on the left staggered flow channel impeller and the right staggered flow channel impeller, the left staggered flow channel impeller and the right staggered flow channel impeller are matched through two groups of clamping and positioning components, detachable plug-in connection is achieved, and the left staggered flow channel impeller and the right staggered flow channel impeller are arranged in a staggered mode.
Preferably, the left impeller of the cross-flow channel comprises a left impeller center ring, a plurality of first arc-shaped channels are uniformly arranged on the periphery of the ring body of the left impeller center ring along the circumferential direction, each first arc-shaped channel is provided with a first arc-shaped channel water inlet positioned at the left impeller center ring and a first arc-shaped channel water outlet positioned at the pump body water outlet, and the clamping positioning member is fixedly arranged on the inner wall of the left impeller center ring, namely the clamping positioning member is fixedly arranged on the left impeller of the cross-flow channel.
Preferably, one side of the clamping and positioning component is provided with an annular hollow mounting conical surface, the clamping and positioning component is fixedly arranged on the left impeller of the cross flow channel through the matching of the annular hollow mounting conical surface and the center ring of the left impeller, the other side of the clamping and positioning component is provided with a hollow inserting matching surface, at least four tooth-shaped clamping grooves are uniformly arranged on the hollow inserting matching surface along the circumferential direction, and tooth-shaped protrusions are arranged on two adjacent sides of each tooth-shaped clamping groove on the hollow inserting matching surface along the circumferential direction.
Preferably, through the matching of the tooth-shaped clamping grooves and the tooth-shaped protrusions respectively arranged on the two groups of clamping and positioning components, the left staggered flow channel impeller and the right staggered flow channel impeller are detachably connected in an inserting manner, and the left staggered flow channel impeller and the right staggered flow channel impeller are arranged in a staggered manner.
Preferably, the shaft body of pump shaft is opened there is the keyway, realizes the dress through the key-type connection between pump shaft and the two sets of chucking locating component that to connect fixedly, still is provided with the location axle collar between every group chucking locating component and the pump shaft.
Preferably, the outlet centers of the left impeller and the right impeller of the cross flow channel are positioned on the same axial plane.
Preferably, the shape of a water outlet of the arc-shaped flow passage is rectangular.
By the scheme, the invention at least has the following advantages:
compared with an impeller structure adopting staggered blades, the impeller structure has the advantages that the use and manufacturing cost is lower, the impeller structure can be used for a long time, an original integrated double-suction pump impeller is divided into a left impeller and a right impeller, the replacement is convenient, the left impeller and the right impeller are clamped and positioned by the tooth-shaped clamping grooves, and the impeller structure can be repaired and replaced at any time; the arrangement of the staggered flow channels can also damage the resonance phenomenon possibly caused by the symmetrical flow structure, the vibration and noise generated by the symmetrical structure during the operation of the double-suction pump can be well reduced, the operating environment of equipment is better optimized, the health and safety of operators are also protected, and the service life of the double-suction pump is further prolonged; the detachable left impeller and the detachable right impeller can greatly reduce the use cost, and the single impeller can be replaced instead of the whole impeller when being worn; the arrangement of the staggered flow channel outlets on the same axial plane is longer relative to a conventional double suction pump impeller, so that the diameter of the novel impeller can be smaller by reducing the wrap angle of the blades under the same lift requirement relative to a common double suction pump impeller.
Furthermore, "left and right impeller" of this application technical scheme is staggered structure and structural symmetry, but the direct mount and fix a position tooth's socket through the even number, change, maintain simply convenient to use.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood and to be implemented in accordance with the content of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate a certain embodiment of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of an impeller structure of a staggered flow passage double suction pump of the present invention;
fig. 2 is a schematic perspective view of the impeller member 2 of the present invention;
fig. 3 is a schematic perspective view of the left impeller 4 with staggered flow channels according to the present invention;
fig. 4 is a schematic structural relationship diagram between the left impeller 4 and the clamping and positioning member 6 of the staggered flow channel of the present invention;
fig. 5 is a schematic structural relationship diagram between the staggered runner left impeller 4 and the clamping and positioning member 6 according to the present invention;
fig. 6 is a schematic perspective view of the clamping and positioning member 6 according to the present invention;
fig. 7 is a schematic perspective view of the clamping and positioning member 6 according to the present invention.
In the figure: the pump comprises a pump body 1, an impeller component 2, a pump shaft 3, a left staggered runner impeller 4, a right staggered runner impeller 5, a clamping and positioning component 6, a left impeller center ring 7, a first arc runner 8, a first arc runner water inlet 9, a first arc runner water outlet 10, an annular hollow mounting conical surface 11, a hollow inserting and matching surface 12, a tooth-shaped clamping groove 13, a tooth-shaped bulge 14, a key groove 15 and a positioning collar 16.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 1 to 7, in a preferred embodiment of the present invention, the impeller structure of the staggered flow channel double suction pump includes a pump body 1, an impeller member 2 and a pump shaft 3, the impeller member 2 is rotatably disposed in an inner cavity of the pump body 1 through the pump shaft 3, the impeller member 2 includes a staggered flow channel left impeller 4 and a staggered flow channel right impeller 5, and the staggered flow channel left impeller 4 and the staggered flow channel right impeller 5 are staggered and detachably connected to form the impeller member 2.
Preferably, the staggered flow channel left impeller 4 and the staggered flow channel right impeller 5 are in a bilateral symmetry structure, the staggered flow channel left impeller 4 and the staggered flow channel right impeller 5 are both provided with clamping and positioning members 6, the staggered flow channel left impeller 4 and the staggered flow channel right impeller 5 are matched through two groups of clamping and positioning members 6 to realize detachable plug-in connection, and the staggered flow channel left impeller 4 and the staggered flow channel right impeller 5 are arranged in a staggered manner.
Preferably, the staggered flow channel left impeller 4 comprises a left impeller center ring 7, a plurality of arc-shaped flow channels 8 are uniformly arranged on the periphery of the ring body of the left impeller center ring 7 along the circumferential direction, each arc-shaped flow channel 8 is provided with an arc-shaped flow channel one water inlet 9 positioned at the left impeller center ring 7 and an arc-shaped flow channel one water outlet 10 positioned at the water outlet of the pump body 1, and the clamping positioning member 6 is fixedly arranged on the inner wall of the left impeller center ring 7, namely the clamping positioning member 6 is fixedly arranged on the staggered flow channel left impeller 4.
Preferably, one side of the clamping and positioning member 6 is provided with an annular hollow installation conical surface 11, the clamping and positioning member 6 is fixedly arranged on the left impeller 4 with the staggered flow channel through the matching of the annular hollow installation conical surface 11 and the left impeller center ring 7, the other side of the clamping and positioning member 6 is provided with a hollow insertion fitting surface 12, at least four tooth-shaped clamping grooves 13 are uniformly arranged on the hollow insertion fitting surface 12 along the circumferential direction, and tooth-shaped protrusions 14 are arranged on the hollow insertion fitting surface 12 along the circumferential direction and positioned on two adjacent sides of each tooth-shaped clamping groove 13. The tooth-shaped clamping groove 13 is positioned on the back of the single-side impeller structure body, so that the tooth-shaped clamping groove 13 and the tooth-shaped protrusion 14 which are respectively arranged on the left impeller and the right impeller are mutually fastened and positioned circumferentially, the left impeller and the right impeller are prevented from moving in a staggered manner in the circumferential direction, meanwhile, the stress is considered, the safety is ensured, the structure of the tooth-shaped clamping groove 13 and the tooth-shaped protrusion is 4 multiplied by 4 teeth, the thickness of the positioning teeth and the diameter of the impeller with the tooth height being 0.02-0.05 times, and the tooth-shaped clamping groove 13 and the tooth-shaped protrusion are determined according to actual conditions.
Preferably, through the matching of the tooth-shaped clamping grooves 13 and the tooth-shaped protrusions 14 respectively arranged on the two groups of clamping and positioning members 6, the staggered flow channel left impeller 4 and the staggered flow channel right impeller 5 are detachably connected in an inserting manner, and the staggered flow channel left impeller 4 and the staggered flow channel right impeller 5 are arranged in a staggered manner. When the left impeller 4 and the right impeller 5 of the staggered flow channel are arranged in a staggered manner, the flow channels of the left impeller and the right impeller are correspondingly arranged in a staggered manner, so that a complete flow channel surface structure is formed in the circumferential direction.
Preferably, a key groove 15 is formed in the shaft body of the pump shaft 3, the pump shaft 3 and the two groups of clamping and positioning members 6 are connected and fixed through a key, and a positioning shaft collar 16 is further arranged between each group of clamping and positioning members 6 and the pump shaft 3. The positioning collar 16 can position the axial position of the left impeller and the right impeller, and is matched with the two groups of clamping and positioning components 6 to realize precise positioning, so that the left impeller and the right impeller are prevented from moving axially and radially or vibrating.
Preferably, the centers of the outlets of the left impeller 4 and the right impeller 5 of the cross flow channel are located on the same axial plane. Further, the pump body 1, the pump shaft 3 and two groups of clamping and positioning components 6 are further included.
Preferably, the shape of the first water outlet 10 of the arc-shaped flow passage is rectangular.
When the impeller structure of the technical scheme is used, compared with the original double-suction pump impeller with large aspect ratio, the impeller member 2 has smaller aspect ratio, and the impeller outlet with the shape approaching to a square shape ensures that the hydraulic loss of the whole impeller member 2 is lower, the working efficiency of the double-suction pump is higher, the working cost is saved, and the impeller has smaller and more compact size under the same lift requirement; the staggered flow channel structure disturbs the resonance structure of the symmetrical liquid flow, reduces the resonance probability of the symmetrical liquid flow, reduces the noise generated by the liquid flow resonance and maintains the body health of the working personnel; the detachable impeller structure is easier to overhaul, maintain and replace, the single-side impeller can be replaced or reserved according to the abrasion loss, and the service life of the pump is prolonged.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a crisscross runner double entry pump impeller structure, includes the pump body (1), impeller component (2) and pump shaft (3), and impeller component (2) rotate through pump shaft (3) and set up in the inner chamber of the pump body (1), its characterized in that: the impeller component (2) comprises a left impeller (4) of an interlaced flow channel and a right impeller (5) of an interlaced flow channel, and the left impeller (4) of the interlaced flow channel and the right impeller (5) of the interlaced flow channel are interlaced and detachably connected in a plug-in manner to form the impeller component (2).
2. The impeller structure of the staggered flow channel double suction pump as claimed in claim 1, wherein: the staggered flow channel left impeller (4) and the staggered flow channel right impeller (5) are of a bilateral symmetry structure, clamping and positioning components (6) are arranged on the staggered flow channel left impeller (4) and the staggered flow channel right impeller (5), the staggered flow channel left impeller (4) and the staggered flow channel right impeller (5) are matched through two groups of clamping and positioning components (6), detachable plug-in connection is achieved, and the staggered flow channel left impeller (4) and the staggered flow channel right impeller (5) are arranged in a staggered mode.
3. The impeller structure of the staggered flow passage double suction pump as claimed in claim 1, wherein: the left impeller (4) with the staggered flow channels comprises a left impeller center ring (7), a plurality of arc-shaped flow channels I (8) are uniformly arranged on the periphery of the ring body of the left impeller center ring (7) along the circumferential direction, each arc-shaped flow channel I (8) is provided with an arc-shaped flow channel water inlet (9) located at the left impeller center ring (7) and an arc-shaped flow channel water outlet (10) located at the water outlet of the pump body (1), and the clamping positioning component (6) is fixedly arranged at the inner wall of the left impeller center ring (7), namely the clamping positioning component (6) is fixedly arranged on the left impeller (4) with the staggered flow channels.
4. The impeller structure of the staggered flow passage double suction pump as claimed in claim 3, wherein: one side of the clamping and positioning component (6) is provided with an annular hollow mounting conical surface (11), the clamping and positioning component (6) is fixedly arranged on the left impeller (4) of the staggered runner through the matching of the annular hollow mounting conical surface (11) and the center ring (7) of the left impeller, the other side of the clamping and positioning component (6) is provided with a hollow inserting fitting surface (12), at least four tooth-shaped clamping grooves (13) are uniformly arranged on the hollow inserting fitting surface (12) along the circumferential direction, and tooth-shaped protrusions (14) are arranged on two adjacent sides of each tooth-shaped clamping groove (13) on the hollow inserting fitting surface (12) along the circumferential direction.
5. The impeller structure of a staggered flow passage double suction pump as claimed in claim 1, 2, 3 or 4, wherein: the tooth-shaped clamping grooves (13) and the tooth-shaped protrusions (14) which are respectively arranged on the two groups of clamping and positioning components (6) are matched, the left staggered flow channel impeller (4) and the right staggered flow channel impeller (5) are detachably connected in an inserting manner, and the left staggered flow channel impeller (4) and the right staggered flow channel impeller (5) are arranged in a staggered manner.
6. The impeller structure of a staggered flow passage double suction pump according to claim 1 or 2, wherein: the shaft body of pump shaft (3) is opened has keyway (15), connects through the key-type connection realization dress between pump shaft (3) and two sets of chucking locating component (6) and fixes, still is provided with location axle collar (16) between every group chucking locating component (6) and pump shaft (3).
7. The impeller structure of the staggered flow passage double suction pump as claimed in claim 2, wherein: the centers of the outlets of the left impeller (4) of the staggered flow channel and the right impeller (5) of the staggered flow channel are positioned on the same axial plane.
8. The impeller structure of the staggered flow channel double suction pump as claimed in claim 3, wherein: the shape of a water outlet (10) of the arc-shaped flow passage is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223017539.7U CN218581875U (en) | 2022-11-14 | 2022-11-14 | Impeller structure of staggered flow passage double-suction pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223017539.7U CN218581875U (en) | 2022-11-14 | 2022-11-14 | Impeller structure of staggered flow passage double-suction pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218581875U true CN218581875U (en) | 2023-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223017539.7U Active CN218581875U (en) | 2022-11-14 | 2022-11-14 | Impeller structure of staggered flow passage double-suction pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218581875U (en) |
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- 2022-11-14 CN CN202223017539.7U patent/CN218581875U/en active Active
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