CN214945014U - Centrifugal pump with crushing function - Google Patents
Centrifugal pump with crushing function Download PDFInfo
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- CN214945014U CN214945014U CN202023306624.6U CN202023306624U CN214945014U CN 214945014 U CN214945014 U CN 214945014U CN 202023306624 U CN202023306624 U CN 202023306624U CN 214945014 U CN214945014 U CN 214945014U
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- pump
- crushing
- impeller
- rotating shaft
- pump body
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Abstract
The utility model discloses a centrifugal pump with crushing function, which comprises a pump body and a pump cover which are fixedly connected with each other, and an impeller arranged in the space formed by the pump body and the pump cover, wherein the circumferential surface of the impeller and the horizontal surface of the pump cover form a blade top gap; a rotating shaft is arranged in the space in an extending mode, and the impeller is sleeved on the rotating shaft in an extending mode; the water inlet of the pump body is provided with a crushing wheel sleeved on the rotating shaft, and the crushing wheel is positioned at the front end of the impeller. The beneficial effects of the utility model are mainly embodied in that: add broken wheel in water inlet department, stir silt when carrying, place the mortar and deposit and condense to carry out the breakage to the coagulum after condensing, prevent that the delivery port is plugged up to the coagulum, influence conveying efficiency. Meanwhile, the large condensation block is prevented from blocking the cavity and damaging the impeller, and the purpose of protecting the impeller is achieved, so that the service life of the impeller can be prolonged.
Description
Technical Field
The utility model relates to a pump class particularly, especially relates to a centrifugal pump with crushing function.
Background
The centrifugal pump is used as main power consumption equipment in petrochemical industry, metallurgy and electric power industry, and is widely applied to various fields in national economy. With the increasing requirements on energy conservation and emission reduction, centrifugal pumps are continuously developed towards high performance and low energy consumption.
The centrifugal pump is a pump for conveying liquid by centrifugal force generated when an impeller rotates, and has various forms such as vertical type, horizontal type, single stage, multi-stage, single suction, double suction, self suction and the like. The centrifugal pump can be used for river channel dredging engineering, river channel siltation increasingly influences the normal play of all functions such as flood control, waterlogging drainage, irrigation, water supply, navigation and the like, the river channel dredging engineering is carried out for recovering the normal functions of a river channel and promoting the rapid and continuous development of the economic society, and in the dredging process, because silt in water is easy to precipitate and harden and does not move along with water, and a condensation block is easy to block a water inlet of the centrifugal pump, the conveying efficiency is reduced, or the condensation block with larger size enters a cavity to block an impeller, so that the impeller is damaged, and the service life of the impeller is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art existence, provide a centrifugal pump with crushing function.
The purpose of the utility model is realized through the following technical scheme:
a centrifugal pump with a crushing function comprises a pump body and a pump cover which are fixedly connected with each other, and an impeller arranged in a space formed by the pump body and the pump cover, wherein a blade top gap is formed between the circumferential surface of the impeller and the horizontal surface of the pump cover; a rotating shaft is arranged in the space in an extending mode, and the impeller is sleeved on the rotating shaft in an extending mode; the water inlet of the pump body is provided with a crushing wheel sleeved on the rotating shaft, and the crushing wheel is positioned at the front end of the impeller.
Preferably, the crushing wheel includes a fixing ring fixed on the rotating shaft and a set of crushing blades equidistantly disposed on the fixing ring, the crushing blades at least include crushing lines, the crushing lines are mutually configured to form a crushing surface, and end sides of the crushing surface are connected to an outer circumferential surface of the fixing ring through supporting surfaces.
Preferably, nine crushing blades are arranged on the fixing ring, and the crushing blades and the fixing ring are integrally formed.
Preferably, a clamping groove is formed in the inner wall of the fixing ring, and a protruding block matched with the clamping groove is arranged on the rotating shaft.
Preferably, the middle end part of the pump body is provided with a suction flange, the top part of the pump body is provided with an outlet flange, the suction flange, the outlet flange, the process pipeline and the impeller form a medium flow channel, a medium inlet of the impeller faces the suction flange, and a medium outlet of the impeller is coaxial with the outlet flange.
Preferably, one side of the pump cover, which faces away from the pump body, is connected with a bearing box body, the bearing box body and the pump body are both provided with hollow cavities, and the rotating shaft is arranged on a central axis of the cavities.
Preferably, a water retaining part is further arranged in the hollow cavity of the bearing box body, the water retaining part is locked on the pump cover through a compression screw, and the water retaining part is connected with the pump cover in a seamless mode.
Preferably, the pump body is connected with the pump cover through a locking bolt.
The beneficial effects of the utility model are mainly embodied in that: add broken wheel in water inlet department, stir silt when carrying, place the mortar and deposit and condense to carry out the breakage to the coagulum after condensing, prevent that the delivery port is plugged up to the coagulum, influence conveying efficiency. Meanwhile, the large condensation block is prevented from blocking the cavity and damaging the impeller, and the purpose of protecting the impeller is achieved, so that the service life of the impeller can be prolonged. In addition, by utilizing the characteristic that the blade top clearance of the impeller centrifugal pump can influence the performance of the pump, the designed pump structure can realize the adjustment of the blade top clearance, thereby realizing the adjustment of the performance of the pump and having stronger applicability.
Drawings
The technical scheme of the utility model is further explained by combining the attached drawings as follows:
FIG. 1: the cross-sectional view of the preferred embodiment of the present invention;
FIG. 2: the utility model discloses the perspective view of crushing wheel in the preferred embodiment.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not limited to the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 2, the utility model discloses a centrifugal pump with crushing function, including the pump body 1 and the pump cover 2 of mutual rigid coupling, connect through locking bolt 12 between the pump body 1 and the pump cover 2. The mounting structure is optimized, the operation is reduced, and the flow efficiency is improved. The middle end part of the pump body 1 is provided with a suction flange 13, the top part of the pump body is provided with an outlet flange 14, the suction flange 13, the outlet flange 14, the process pipeline and the impeller form a medium flow channel, a medium inlet of the impeller faces the suction flange 13, and a medium outlet of the impeller is coaxial with the outlet flange 14. Furthermore, one side of the pump cover 2, which faces away from the pump body 1, is connected with a bearing box body 6, the bearing box body 6 and the pump body 1 are both provided with hollow cavities, and the rotating shaft 4 is arranged on a central axis of the cavities. A water retaining part 62 is further arranged in the hollow cavity of the bearing box body 6, the water retaining part 62 is locked on the pump cover 2 through a compression screw 63, and the water retaining part 62 is connected with the pump cover 2 in a seamless mode.
The utility model discloses in, be equipped with impeller 3 in the space 11 that the pump body 1 and pump cover 2 formed, impeller 3 the periphery with the blade top clearance is constituteed to the horizontal plane 21 of pump cover 2, utilizes centrifugal impeller pump blade top clearance size can influence this characteristic of pump performance, and the design pump structure can realize that the blade top clearance is adjustable to it is adjustable to realize the pump performance, has stronger suitability. In the above, a rotating shaft 4 is extended and disposed in the space 11, and the impeller 3 is sleeved on the rotating shaft 4.
The utility model discloses an another design point lies in: the water inlet of the pump body 1 is provided with a crushing wheel 7 sleeved on the rotating shaft 4, and the crushing wheel 7 is positioned at the front end of the impeller 3. The utility model discloses add broken wheel in water inlet department, stir silt when carrying, place the mortar and deposit and condense to carry out the breakage to the coagulum after condensing, prevent that the delivery port is plugged up to the coagulum, influence conveying efficiency. Meanwhile, the large condensation block is prevented from entering the cavity to damage the impeller, and the purpose of protecting the impeller is achieved, so that the service life of the impeller can be prolonged.
Specifically, the crushing wheel 7 includes a fixed ring 71 fixed on the rotating shaft 4 and a set of crushing blades 72 equidistantly disposed on the fixed ring 71, the crushing blades 72 at least include crushing wires 73, the crushing wires 73 are mutually configured to form crushing surfaces, and end sides of the crushing surfaces are connected to an outer circumferential surface of the fixed ring 71 through supporting surfaces 74. Further, be equipped with nine on the solid fixed ring 71 broken sword 72, broken sword 72 with gu fixed ring 71 integrated into one piece, of course, gu also to set up the broken sword of other quantity on the fixed ring 71, can do corresponding adjustment according to actual demand, all belong to the utility model discloses a protection category.
A clamping groove is formed in the inner wall of the fixing ring 71, a protruding block matched with the clamping groove is arranged on the rotating shaft 4, the clamping groove and the protruding block are matched to prevent the fixing ring 71 from rotating, and therefore the crushing quality can be guaranteed.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (8)
1. Centrifugal pump with crushing function, its characterized in that: the pump comprises a pump body (1) and a pump cover (2) which are fixedly connected with each other, and an impeller (3) arranged in a space (11) formed by the pump body (1) and the pump cover (2), wherein a blade top gap is formed by the circumferential surface of the impeller (3) and the horizontal surface (21) of the pump cover (2); a rotating shaft (4) is arranged in the space (11) in an extending mode, and the impeller (3) is sleeved on the rotating shaft (4) in the extending mode; the water inlet of the pump body (1) is provided with a set of crushing wheel (7) arranged on the rotating shaft (4), and the crushing wheel (7) is positioned at the front end of the impeller (3).
2. The centrifugal pump with a crushing function according to claim 1, wherein: the crushing wheel (7) comprises a fixing ring (71) fixedly arranged on the rotating shaft (4) and a group of crushing blades (72) arranged on the fixing ring (71) at equal intervals, the crushing blades (72) at least comprise crushing lines (73), the crushing lines (73) are mutually configured to form crushing surfaces, and the end sides of the crushing surfaces are connected to the outer circumferential surface of the fixing ring (71) through supporting surfaces (74).
3. The centrifugal pump with a crushing function according to claim 2, wherein: nine crushing blades (72) are arranged on the fixing ring (71), and the crushing blades (72) and the fixing ring (71) are integrally formed.
4. The centrifugal pump with a crushing function according to claim 2, wherein: a clamping groove is formed in the inner wall of the fixing ring (71), and a protruding block matched with the clamping groove is arranged on the rotating shaft (4).
5. The centrifugal pump with a crushing function according to claim 2, wherein: the pump comprises a pump body (1), and is characterized in that a suction flange (13) is arranged at the middle end part of the pump body (1), an outlet flange (14) is arranged at the top part of the pump body, a medium flow channel is formed by the suction flange (13), the outlet flange (14), a process pipeline and an impeller, a medium inlet of the impeller faces the suction flange (13), and a medium outlet of the impeller is coaxial with the outlet flange (14).
6. The centrifugal pump with a crushing function according to claim 5, wherein: one side, back to the pump body (1), of the pump cover (2) is connected with a bearing box body (6), the bearing box body (6) and the pump body (1) are both provided with hollow cavities, and the rotating shaft (4) is arranged on a central axis of the cavities.
7. The centrifugal pump with a crushing function according to claim 6, wherein: the bearing box is characterized in that a water retaining piece (62) is further arranged in the hollow cavity of the bearing box body (6), the water retaining piece (62) is locked on the pump cover (2) through a compression screw (63), and the water retaining piece (62) is connected with the pump cover (2) in a seamless mode.
8. The centrifugal pump with a crushing function according to claim 7, wherein: the pump body (1) is connected with the pump cover (2) through a locking bolt (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023306624.6U CN214945014U (en) | 2020-12-31 | 2020-12-31 | Centrifugal pump with crushing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023306624.6U CN214945014U (en) | 2020-12-31 | 2020-12-31 | Centrifugal pump with crushing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214945014U true CN214945014U (en) | 2021-11-30 |
Family
ID=79116629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023306624.6U Active CN214945014U (en) | 2020-12-31 | 2020-12-31 | Centrifugal pump with crushing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214945014U (en) |
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2020
- 2020-12-31 CN CN202023306624.6U patent/CN214945014U/en active Active
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