CN213088251U

CN213088251U - Self priming pump structure convenient to installation

Info

Publication number: CN213088251U
Application number: CN202021872278.5U
Authority: CN
Inventors: 仲建武
Original assignee: Jiangsu Hongguang Pump Valve Technology Co ltd
Current assignee: Jiangsu Hongguang Pump Valve Technology Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-04-30
Anticipated expiration: 2030-08-31

Abstract

The utility model relates to a self priming pump structure convenient to installation relates to the field of self priming pump, and it includes the body, the bottom fixedly connected with bottom plate of the pump body, the bottom plate is connected with the water receiving pipe, the center department of bottom plate sets up some limbers that are not less than the water receiving pipe diameter, the limbers communicates with the inner chamber of the pump body, bottom plate and bottom surface fixed connection. This application has the effect of the installation of the self priming pump of being convenient for.

Description

Self priming pump structure convenient to installation

Technical Field

The application relates to the field of self-priming pumps, in particular to a self-priming pump structure convenient to install.

Background

The self-priming pump belongs to a special centrifugal pump, and can be normally operated by adding a certain amount of water into a pump body before starting for the first time without filling a water inlet pipe with water, and discharging gas in the water inlet pipe after starting for a certain time. The air-liquid mixing pump utilizes the air-liquid mixing principle and the special structure of the pump to realize air suction, forms a certain vacuum state in a suction pipeline of the pump, does not need to be attached with other special air suction devices, and can not draw water after being used every time except that the water is required for the first time. The centrifugal pump has the advantages of convenient use, reliable work, convenient remote centralized control, automatic operation and the like, thereby being widely applied to the departments of ships, agriculture, municipal administration, electric power, mines, chemical industry and the like, being particularly suitable for the occasions of flowing irrigation and drainage, moving work, frequent start, difficult liquid filling and the like, and having the tendency of gradually replacing the common centrifugal pump in ground water lifting.

At present, the common self-priming pump in China mostly adopts two structural forms of an internal mixing type and an external mixing type, and the self-priming performance of the pump is influenced by the structural factors of the pump. The indexes for evaluating the performance of the self-priming pump mainly comprise self-priming time and self-priming height, wherein the self-priming time is the time required by the pump to continuously operate from the start to the pump inlet to continuously output liquid, and the conventional self-priming pump still has the defects of long self-priming time, heavy volume, low performance and the like.

The arrangement of pump shaft can be divided into vertical and horizontal when the self priming pump is installed, wherein in the water in the vertical sealless self priming pump passes through the impeller discharge spiral case, the bottom of the self priming pump of correlation technique supports through the supporting legs, when installing above the pond etc., the bottom of self priming pump need be connected with the water receiving pipe that connects out from underground, but when connecting the water receiving pipe, need be connected the back with the self priming pump with the water receiving pipe, just can put into the below ground with the water receiving pipe, often need hang the self priming pump and install with the water receiving pipe, comparatively troublesome.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the installation of self priming pump, this application provides a self priming pump structure convenient to installation.

The application provides a pair of self priming pump structure convenient to installation adopts following technical scheme:

the utility model provides a self priming pump structure convenient to installation, includes the pump body, the bottom fixedly connected with bottom plate of the pump body, the bottom plate is connected with the water receiving pipe, the center department of bottom plate sets up some limbers that are not less than the water receiving pipe diameter, the limbers communicates with the inner chamber of the pump body, bottom plate and bottom surface fixed connection.

Through adopting above-mentioned technical scheme, during the installation self priming pump, earlier with bottom plate and water receiving pipe fixed connection, then with the bottom plate be fixed in on the bottom surface, install the self priming pump on the bottom plate again, need not to hoist the self priming pump for a long time, the installation of the self priming pump of being convenient for.

Preferably, the side wall of the bottom surface of the pump body is provided with a mounting ring, the bottom plate is provided with a groove for clamping the mounting ring, and the groove is matched with the mounting ring.

Through adopting above-mentioned technical scheme, the recess is convenient for the pump body and is put into, carries on spacingly to the collar simultaneously, promotes self priming pump's stability.

Preferably, wear to be equipped with the rag screw in the bottom plate, the rag screw is pre-buried in the ground bottom, the rag screw is equipped with a plurality ofly along the circumference of the pump body, the one end that the ground was kept away from to the rag screw is worn out the bottom plate, the partial cover that the base was worn out to the rag screw is equipped with the overlap joint board, the overlap joint board includes interconnect's diaphragm and riser, during the bottom surface of diaphragm and the top surface butt of collar, the bottom surface of riser and the top surface butt of bottom plate, the partial threaded connection that the overlap joint board was worn out to the rag screw has lock nut, lock nut and the top.

Through adopting above-mentioned technical scheme, during the installation, earlier with the hole cover on the bottom plate on the rag screw, then place the collar in the recess, overlap the board again on the rag screw to make the bottom surface of overlap board and the top surface butt of collar, then screw lock nut, fixed the pump body.

Preferably, a sealing groove is formed in the bottom plate, and a sealing strip is arranged in the sealing groove.

Through adopting above-mentioned technical scheme, the sealing strip seals between bottom plate and collar, reduces the possibility that water reveals from between bottom plate and collar.

Preferably, the sealing grooves are arranged in the radial direction of the pump body in a plurality.

By adopting the technical scheme, a plurality of positions are sealed, the sealing performance is further improved, and the possibility of water leakage between the bottom plate and the mounting ring is reduced.

Preferably, be equipped with the outlet pipe on the lateral wall of the pump body, be equipped with the mounting panel in the pump body, be equipped with the spiral case structure on the mounting panel, the spiral case structure includes spiral case runner and spiral case export, the bottom of spiral case runner is passed through connecting pipe and limbers intercommunication, spiral case export and outlet pipe intercommunication.

By adopting the technical scheme, when the self-priming pump works, water passes through the water through hole and the connecting pipe from the water receiving pipe, then passes through the volute flow channel and the volute outlet, and is discharged from the water outlet pipe.

Preferably, the volute flow channel is gradually reduced towards the axis of the pump body, the volute flow channel is smoothly arranged along the circumferential direction of the pump body, and the bottom of the volute structure is communicated with the water inlet pipe.

By adopting the technical scheme, the volute flow channel is smoothly arranged along the circumferential direction of the pump body, so that the kinetic energy lost by the impact of water with the side wall when flowing in the volute is reduced, and the water outlet capacity of the self-priming pump is improved; the volute flow channel is gradually reduced towards the axis of the pump body, the cross section of the volute flow channel is further cylindrical, the kinetic energy lost by the flowing of water in the volute is further reduced, and the water outlet capacity of the self-priming pump is improved.

Preferably, the junction of the volute flow channel and the volute outlet is in circular arc transition.

By adopting the technical scheme, the kinetic energy lost when water enters the volute outlet from the volute channel is reduced, and the water outlet capacity of the self-priming pump is further improved.

Preferably, a motor is installed on the top surface of the pump body, an impeller is coaxially fixed on an output shaft of the motor, and the impeller is located in the volute structure;

the impeller includes front shroud and the back shroud that sets up along the pump body axial, the water inlet has been seted up to the center department of front shroud, the water inlet is kept away from the motor setting, be equipped with the delivery port between front shroud and the back shroud, be equipped with helical blade between front shroud and the back shroud, helical blade is equipped with a plurality ofly along the circumference of front shroud.

By adopting the technical scheme, the motor rotates to drive the impeller to rotate, water is sucked from the water inlet, flows along the helical blades and is discharged into the volute flow channel from the water outlet, and finally is discharged from the water outlet pipe.

Preferably, one end of the impeller, which is far away from the motor, is provided with a plurality of continuous first annular steps, and one end of the volute structure, which faces the impeller, is provided with a plurality of continuous second annular steps, and the second annular steps are located in the first annular steps.

Through adopting above-mentioned technical scheme, form the multistage clearance between first annular step and second annular step, increased clearance entry, export and whole clearance resistance, adopt the multistage clearance to also increase clearance length, increased the on-the-way resistance in clearance promptly, reach the purpose that the leakage amount reduces, volumetric efficiency improves.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the bottom plate and the water through hole, the self-sucking pump has the effect of being convenient to install;

2. through the arrangement of the foundation screws, the lap plate and the nuts, the fixing of the bottom plate and the ground and the fixing of the bottom plate and the pump body are realized simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of the whole in the embodiment of the present application.

Fig. 2 is a schematic sectional view of a-a in fig. 1.

Fig. 3 is a partially enlarged view of a portion B in fig. 2.

Fig. 4 is a schematic structural diagram of a volute embodied in the embodiment of the present application.

Fig. 5 is a schematic structural diagram of an impeller embodied in the embodiment of the present application.

Fig. 6 is a partially enlarged view of a portion C in fig. 2.

Description of reference numerals: 1. a pump body; 11. a mounting ring; 12. a water outlet pipe; 13. mounting a plate; 14. a volute structure; 151. a volute flow channel; 152. a volute outlet; 153. a connecting pipe; 154. a first annular step; 16. a motor; 17. an impeller; 171. a front cover plate; 1711. a water inlet; 1712. a helical blade; 172. a rear cover plate; 173. a water outlet; 174. a second annular step; 2. a base plate; 21. a groove; 22. a water through hole; 23. a sealing groove; 231. a sealing strip; 3. a water receiving pipe; 4. a foundation screw; 41. locking the nut; 42. a lap plate; 421. a transverse plate; 422. a riser.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses self priming pump structure convenient to installation.

Referring to fig. 1 and 2, this self priming pump structure includes the pump body 1, and the bottom fixedly connected with bottom plate 2 of the pump body 1 is subaerial to be equipped with water receiving pipe 3, and bottom plate 2 passes through flange joint with water receiving pipe 3, and the center department of bottom plate 2 sets up some limbers 22 that are not less than 3 diameters of water receiving pipe.

Referring to fig. 2 and 3, the ground is embedded with a plurality of ground screws 4, and the ground screws 4 are arrayed along the circumferential direction of the pump body 1 and penetrate through the bottom plate 2. The bottom plate 2 top is equipped with the overlap joint board 42, and the overlap joint board 42 includes integrated into one piece's riser 422 and diaphragm 421, and the diaphragm 421 overlaps in the part that baseboard 2 was worn out to rag screw 4. The bottom surface of the pump body 1 is fixedly connected with a mounting ring 11, the top surface of the bottom plate 2 is provided with a groove 21 for the mounting ring 11 to be clamped in, and the top surface of the mounting ring 11 is higher than the top surface of the bottom plate 2. The bottom surface of the transverse plate 421 abuts against the top surface of the mounting ring 11, at this time, the bottom surface of the vertical plate 422 abuts against the top surface of the bottom plate 2, the part of the anchor screw 4 penetrating through the lapping plate 42 is further connected with a locking nut 41 in a threaded manner, the locking nut 41 abuts against the lapping plate 42, so that the bottom plate 2 is fixed with the ground, and meanwhile, the pump body 1 is fixed with the bottom plate 2. Two locking nuts 41 can be arranged on the same anchor screw 4 for locking. The rag screw 4 can adopt 9 word rag bolt, and the one end of taking the crotch is buried in the underground, increases and grabs the land fertility.

Referring to fig. 3, a sealing groove 23 is formed in the bottom plate 2, a sealing strip 231 is filled in the sealing groove 23, the sealing groove 23 is provided with a plurality of or two or three sealing grooves along the radial direction of the pump body 1, and the projection of the sealing groove 23 along the vertical direction is located between the water through hole 22 and the side wall of the sealing ring.

Referring to fig. 2 and 4, the side wall of the pump body 1 is communicated with a water outlet pipe 12, the inner wall of the pump body 1 is welded with a mounting plate 13, the mounting plate 13 is fixed with a volute structure 14, the volute structure 14 comprises a volute flow channel 151 and a volute outlet 152, the bottom of the volute flow channel 151 is communicated with a water through hole 22 through a connecting pipe 153, and the volute outlet 152 is communicated with the water outlet pipe 12. The volute flow channel 151 is gradually reduced towards the axis of the pump body 1, the volute flow channel 151 is smoothly arranged along the circumferential direction of the pump body 1, the bottom of the volute structure 14 is communicated with a water inlet pipe, and the intersection of the volute flow channel 151 and the volute outlet 152 is in arc transition.

Referring to fig. 2 and 5, a motor 16 is mounted on the top surface of the pump body 1, an impeller 17 is coaxially fixed on an output shaft of the motor 16, and the impeller 17 is located in the volute structure 14. Impeller 17 includes along the axial protecgulum 171 and the back shroud 172 that sets up of the pump body 1, and water inlet 1711 has been seted up to the center department of protecgulum 171, and motor 16 setting is kept away from to water inlet 1711, is equipped with delivery port 173 between protecgulum 171 and the back shroud 172, fixedly connected with helical blade 1712 between protecgulum 171 and the back shroud 172, and helical blade 1712 is equipped with a plurality ofly along the circumference of protecgulum 171.

Referring to fig. 6, a plurality of continuous first annular steps 154 are integrally formed at an end of the impeller 17 away from the motor 16, a plurality of continuous second annular steps 174 are formed at an end of the volute structure 14 facing the impeller 17, the second annular steps 174 are located in the first annular steps 154, and a radial gap between the second annular steps 174 and the first annular steps 154 is 1 mm.

The implementation process of a self priming pump structure convenient to installation of this application embodiment does: when the water receiving pipe is installed, the bottom plate 2 is connected with the water receiving pipe 3, then the water receiving pipe 3 is inserted into the ground bottom, and the bottom plate 2 is sleeved on the foundation screws 4. Then, the mounting ring 11 is placed in the groove 21, the transverse plate 421 is sleeved on the anchor screws 4, the transverse plate 421 abuts against the mounting ring 11, the vertical plate 422 abuts against the bottom plate 2, and then the lock nut 41 is screwed, so that the bottom plate 2 is fixed on the ground, and the pump body 1 is fixed on the bottom plate 2.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a self priming pump structure convenient to installation which characterized in that: the water pump comprises a pump body (1), a bottom fixedly connected with bottom plate (2) of the pump body (1), the bottom plate (2) is connected with a water receiving pipe (3), a water through hole (22) which is not smaller than the diameter of the water receiving pipe (3) is formed in the center of the bottom plate (2), the water through hole (22) is communicated with an inner cavity of the pump body (1), and the bottom plate (2) is fixedly connected with the bottom surface.

2. A self-primer pump structure for ease of installation according to claim 1, wherein: be equipped with collar (11) on the lateral wall of the pump body (1) bottom surface, set up recess (21) that supply collar (11) card to go into on bottom plate (2), recess (21) and collar (11) adaptation.

3. A self-primer pump structure for ease of installation according to claim 2, wherein: wear to be equipped with rag screw (4) in bottom plate (2), rag screw (4) are pre-buried in the ground bottom, rag screw (4) are equipped with a plurality ofly along the circumference of the pump body (1), rag screw (4) are kept away from the one end on ground and are worn out bottom plate (2), the part cover that the base was worn out in rag screw (4) is equipped with bridging plate (42), bridging plate (42) include interconnect's diaphragm (421) and riser (422), during the bottom surface of diaphragm (421) and the top surface butt of collar (11), the bottom surface of riser (422) and the top surface butt of bottom plate (2), the partial threaded connection that bridging plate (42) was worn out in rag screw (4) has lock nut (41), the top surface butt of lock nut (41) and bridging plate (42).

4. A self-primer pump structure for ease of installation according to claim 3, wherein: a sealing groove (23) is formed in the bottom plate (2), and a sealing strip (231) is arranged in the sealing groove (23).

5. The self-primer pump structure of claim 4 which is easy to install, further comprising: the sealing grooves (23) are arranged in the radial direction of the pump body (1).

6. A self-primer pump structure for ease of installation according to claim 1, wherein: be equipped with outlet pipe (12) on the lateral wall of the pump body (1), be equipped with mounting panel (13) in the pump body (1), be equipped with spiral case structure (14) on mounting panel (13), spiral case structure (14) are including spiral case runner (151) and spiral case export (152), connecting pipe (153) and limbers (22) intercommunication are passed through to the bottom of spiral case runner (151), spiral case export (152) and outlet pipe (12) intercommunication.

7. The self-primer pump structure of claim 6 which is easy to install, further comprising: the axial line of spiral case runner (151) towards the pump body (1) is the convergent trend, spiral case runner (151) is along the smooth setting of the circumference of the pump body (1), the bottom and the inlet tube intercommunication of spiral case structure (14).

8. A self-primer pump construction for ease of installation according to claim 7, wherein: the junction of the volute flow channel (151) and the volute outlet (152) is in arc transition.

9. The self-primer pump structure of claim 6 which is easy to install, further comprising: a motor (16) is mounted on the top surface of the pump body (1), an impeller (17) is coaxially fixed on an output shaft of the motor (16), and the impeller (17) is positioned in the volute structure (14);

impeller (17) are including front shroud (171) and back shroud (172) along the axial setting of the pump body (1), water inlet (1711) have been seted up to the center department of front shroud (171), motor (16) setting is kept away from in water inlet (1711), be equipped with delivery port (173) between front shroud (171) and back shroud (172), be equipped with helical blade (1712) between front shroud (171) and back shroud (172), helical blade (1712) are equipped with a plurality ofly along the circumference of front shroud (171).

10. A self-primer pump construction for ease of installation in accordance with claim 9, wherein: the end, far away from the motor (16), of the impeller (17) is provided with a plurality of continuous first annular steps (154), the end, facing the impeller (17), of the volute structure (14) is provided with a plurality of continuous second annular steps (174), and the second annular steps (174) are located in the first annular steps (154).