CN215719531U

CN215719531U - Vertical multistage pipeline pump

Info

Publication number: CN215719531U
Application number: CN202122176200.0U
Authority: CN
Inventors: 陈时益; 杨剑炜; 郑克
Original assignee: Zhejiang Modern Pump Industry Co ltd
Current assignee: Zhejiang Modern Pump Industry Co ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-02-01
Anticipated expiration: 2031-09-09

Abstract

The utility model discloses a vertical multistage pipeline pump, in particular to the technical field of vertical pipeline pumps, which comprises a vertical motor, wherein a power shaft is arranged inside the bottom end of the vertical motor, a connecting jacket is arranged outside the bottom end of the power shaft, a driven shaft column is arranged inside the bottom of the connecting jacket, a limiting shaft column is fixedly connected to the bottom of the driven shaft column, a sealing sleeve is movably sleeved outside the limiting shaft column, an impeller shaft column is fixedly connected to the bottom of the limiting shaft column, a plurality of guide impellers which are movably sleeved with the impeller shaft column are arranged at the bottom of a top sealing sleeve, a flow channel sleeve is arranged between every two adjacent guide impellers, a connecting sleeve shell is fixedly connected to the bottom end of the vertical motor through bolts, an outer sleeve is arranged at the bottom of the connecting sleeve shell, and a liquid outlet valve body is arranged at the bottom of the outer sleeve, the utility model is provided with the flow channel sleeve and the outer sleeve, which is convenient for dismounting and mounting the outer structure and the inner device of the pipeline pump, the efficiency is improved.

Description

Vertical multistage pipeline pump

Technical Field

The utility model relates to the technical field of vertical pipeline pumps, in particular to a vertical multistage pipeline pump.

Background

The vertical multi-stage centrifugal pipeline pump adopts standard vertical motor and quick-mounting mechanical seal, it is very convenient to change, the overflow portion of the pump is made of stainless steel material, it is applicable to light corrosive medium, the pump adopts excellent water conservancy model and advanced manufacturing process, and can greatly raise the performance and service life of the pump, and because the pump adopts shaft seal structure made of hard alloy and fluororubber material to make mechanical seal, when the pump is worked, the motor can drive the shaft to rotate, the liquid filled in the impeller can be thrown from centre of the impeller to periphery of the impeller along the flow channel of the blade under the action of centrifugal force, and because the liquid is acted by blade, the pressure and speed can be simultaneously increased, and passed through the flow channel of guide shell and can be guided into next-stage impeller, the liquid can be successively passed through all impellers and guide shell, and further the pressure energy of the liquid can be increased, after every impeller is progressively superimposed, a certain lift is obtained.

The runner guide shell of the vertical multistage centrifugal pipeline is connected with each guide shell by utilizing the bolts, so that the guide shell is prevented from being driven to rotate by the impeller in the flow guide process, the energy loss in the kinetic energy transfer process is reduced, the conventional runner guide shell is fixed and detached mutually and is troublesome, and the efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a vertical multi-stage pipeline pump, and the technical problems to be solved by the utility model are as follows: the runner guide shell of the vertical multistage centrifugal pipeline is connected with each guide shell by utilizing the bolts, and the disassembly between the guide shells is relatively troublesome and the efficiency is relatively low.

In order to achieve the purpose, the utility model provides the following technical scheme: a vertical multistage pipeline pump comprises a vertical motor, a power shaft is arranged inside the bottom end of the vertical motor, a connecting jacket is arranged outside the bottom end of the power shaft, a driven shaft column is arranged on the inner side of the bottom of the connecting jacket, a plurality of jacket bolts are connected inside one side of the connecting jacket, a limiting shaft column is fixedly connected at the bottom of the driven shaft column, a sealing sleeve is movably sleeved on the outer side of the limiting shaft column, a top sealing sleeve is movably sleeved outside the sealing sleeve, the bottom fixedly connected with impeller jack-post of spacing jack-post, the bottom of top seal external member is provided with a plurality of water conservancy diversion impellers that carry out the activity and cup joint with the impeller jack-post, adjacent two all be provided with the runner external member between the water conservancy diversion impeller, be located the bottom the outside activity of water conservancy diversion impeller bottom has cup jointed the bottom seal external member, the bottom fixedly connected with spacing jack-post of impeller jack-post.

In a preferred embodiment, a plurality of pin grooves are formed in the front surface of the impeller shaft column, pin keys sequentially penetrating through the guide vanes and the inner part of the impeller shaft column are arranged in the pin grooves, and the guide vanes are conveniently fixed on the outer part of the impeller shaft column through the use of the pin keys and the pin grooves.

In a preferred embodiment, the bottom end of the vertical motor is fixedly connected with a connecting casing through a bolt, the bottom of the connecting casing is provided with an external sleeve, the bottom of the external sleeve is provided with a liquid outlet valve body, the limiting shaft column is located inside the liquid outlet valve body, and the external assembly is convenient to detach and mount through the use of the external sleeve.

In a preferred embodiment, a plurality of connecting rods are fixedly connected to the outer side of the top of the liquid outlet valve body, the connecting rods penetrate through the bottom of the connecting casing and are sequentially sleeved with a flat gasket and a spring gasket, a fastening nut in threaded connection with the connecting rods is arranged at the top end of the spring gasket, and gaps between the outer casing and the connecting casing and between the outer casing and the liquid outlet valve body can be prevented through the use of the flat gasket and the spring gasket.

In a preferred embodiment, gland is installed to the inboard on connecting the cover shell top, mechanical seal subassembly has been cup jointed in the inboard activity on gland top, mechanical seal subassembly is located the outside of driven jack-post and carries out swing joint with the driven jack-post, mechanical seal subassembly's bottom is provided with carries out the seal ring that the activity was cup jointed with the driven jack-post, the outside on gland top is provided with a plurality ofly and is connected the cover shell and carry out threaded connection's gland bolt, is favorable to sealing gland and driven jack-post's junction through the use to seal ring and mechanical seal subassembly.

In a preferred embodiment, a first fastening screw sleeve is screwed on the bottom end of the impeller shaft column, a second fastening screw sleeve which is screwed on the impeller shaft column is arranged on the bottom end of the first fastening screw sleeve, and a plurality of guide impellers can be fixed on the impeller shaft column by using the first fastening screw sleeve and the second fastening screw sleeve, so that longitudinal looseness is avoided.

The utility model has the technical effects and advantages that:

the utility model makes the pin key fall in the pin groove by sleeving the guide vane wheel outside the vane wheel shaft column in sequence and making the pin key pass through the guide vane wheel and the vane wheel shaft column in sequence by the pin key, and in the process of installing the guide vane wheel, a flow channel suite is installed between two adjacent guide vane wheels and is movably connected with the guide vane wheel, then a first fastening screw sleeve and a second fastening screw sleeve are connected with the bottom of the vane wheel shaft column in sequence by screw threads, the assembled inner device is installed in the liquid outlet valve body by the limiting shaft column, and the outer sleeve is sleeved outside the inner device, so that the top end of the outer sleeve is connected with the connecting sleeve shell, then the connecting sleeve shell and the outer sleeve can be fixed by using a plurality of connecting column rods and fastening nuts, and then a sealing washer, a mechanical sealing component and a sealing gland are sleeved outside the driven shaft column in sequence, the utility model facilitates the disassembly and the installation of the external structure and the internal devices of the pipeline pump by using the flow channel sleeve and the external sleeve, thereby improving the efficiency.

Drawings

Fig. 1 is a schematic cross-sectional structure of the present invention.

Fig. 2 is a schematic view of a connection structure of a guide vane wheel and a flow passage kit according to the present invention.

FIG. 3 is an enlarged view of portion A of FIG. 1 according to the present invention.

FIG. 4 is an enlarged view of the portion B of FIG. 1 according to the present invention.

FIG. 5 is an enlarged view of the portion C of FIG. 1 according to the present invention.

FIG. 6 is an enlarged view of the portion D in FIG. 1 according to the present invention.

The reference signs are: 1. a vertical motor; 2. a connecting casing; 3. a sealing gland; 4. limiting the shaft column; 5. an outer sleeve; 6. an impeller shaft post; 7. limiting the shaft column; 8. a power shaft; 9. fastening a nut; 10. a spring washer; 11. a flat gasket; 12. connecting the pole; 13. a liquid outlet valve body; 14. a driven shaft post; 15. a guide vane wheel; 16. a flow channel kit; 17. a pin slot; 18. a bottom sealing sleeve; 19. a first fastening screw sleeve; 20. a second fastening screw sleeve; 21. connecting a jacket; 22. a jacket bolt; 23. a gland bolt; 24. a mechanical seal assembly; 25. a sealing gasket; 26. sealing the sleeve; 27. a top seal assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to the attached drawings 1-6 of the specification, the vertical multistage pipeline pump of the embodiment comprises a connecting casing 2 and a driven shaft column 14, wherein the bottom of the driven shaft column 14 is fixedly connected with a limiting shaft column 4, the outer side of the limiting shaft column 4 is movably sleeved with a sealing sleeve 26, the outer part of the sealing sleeve 26 is movably sleeved with a top sealing sleeve 27, the bottom of the limiting shaft column 4 is fixedly connected with an impeller shaft column 6, the bottom of the top sealing sleeve 27 is provided with a plurality of guide vanes 15 which are movably sleeved with the impeller shaft column 6, a flow channel sleeve 16 is arranged between every two adjacent guide vanes 15, the outer part at the bottom end of the guide vane 15 at the bottom end is movably sleeved with a bottom sealing sleeve 18, the bottom of the impeller shaft column 6 is fixedly connected with a limiting shaft column 7, the use of multiple flow passage assemblies 16, top seal assemblies 27 and bottom seal assemblies 18 facilitates the removal of the internal flow guide devices.

A plurality of cotter grooves 17 are formed in the front of the impeller shaft column 6, cotter keys which sequentially penetrate through the guide impellers 15 and the impeller shaft column 6 are arranged in the cotter grooves 17, and the guide impellers 15 are conveniently fixed outside the impeller shaft column 6 by using the cotter keys and the cotter grooves 17.

The bottom end of the impeller shaft column 6 is in threaded connection with a first fastening threaded sleeve 19, the bottom end of the first fastening threaded sleeve 19 is provided with a second fastening threaded sleeve 20 in threaded connection with the impeller shaft column 6, and the guide vanes 15 can be fixed on the impeller shaft column 6 through the first fastening threaded sleeve 19 and the second fastening threaded sleeve 20, so that longitudinal looseness is avoided.

The implementation scenario is specifically as follows:

when the utility model is used, firstly, the guide vanes 15 are sequentially sleeved outside the vane shaft column 6, the pin key sequentially penetrates through the guide vanes 15 and the vane shaft column 6 to enable the pin key to fall inside the pin groove 17, in the process of installing the guide vanes 15, the flow channel sleeve 16 is installed between two adjacent guide vanes 15 and enables the flow channel sleeve 16 to be movably connected with the guide vanes 15, then the bottom of the vane shaft column 6 is sequentially connected with the first fastening screw sleeve 19 and the second fastening screw sleeve 20 in a threaded manner, after the connection of the guide vanes 15 and the flow channel sleeve 16 is completed, the top sealing sleeve 27 is sleeved outside the guide vanes 15 at the top, the top sealing sleeve 27 is movably connected with the limiting shaft column 4 fixed at the top of the vane shaft column 6, the sealing sleeve 26 is sleeved between the limiting shaft column 4 and the top sealing sleeve 27, and finally the bottom sealing sleeve 18 is sleeved outside the guide vanes 15 at the bottom, and completing the installation of the internal devices.

Referring to the attached drawings 1-6 of the specification, the vertical multistage pipeline pump of the embodiment comprises a vertical motor 1 and a connecting casing 2, wherein a sealing gland 3 is installed on the inner side of the top end of the connecting casing 2, a mechanical seal assembly 24 is movably sleeved on the inner side of the top end of the sealing gland 3, the mechanical seal assembly 24 is located on the outer side of a driven shaft column 14 and is movably connected with the driven shaft column 14, a sealing gasket 25 movably sleeved with the driven shaft column 14 is arranged at the bottom end of the mechanical seal assembly 24, a plurality of gland bolts 23 in threaded connection with the connecting casing 2 are arranged on the outer side of the top end of the sealing gland 3, and the sealing of the connecting point of the sealing gland 3 and the driven shaft column 14 is facilitated through the use of the sealing gasket 25 and the mechanical seal assembly 24.

The inside of the bottom end of the vertical motor 1 is provided with a power shaft 8, the outside of the bottom end of the power shaft 8 is provided with a connecting jacket 21, the inner side of the bottom of the connecting jacket 21 is provided with a driven shaft post 14, the inside of one side of the connecting jacket 21 is connected with a plurality of jacket bolts 22, the bottom end of the vertical motor 1 is fixedly connected with a connecting casing 2 through bolts, the bottom of the connecting casing 2 is provided with an outer sleeve 5, the bottom of the outer sleeve 5 is provided with a liquid outlet valve body 13, a limiting shaft post 7 is positioned inside the liquid outlet valve body 13, the outer side of the top of the liquid outlet valve body 13 is fixedly connected with a plurality of connecting post rods 12, the plurality of connecting post rods 12 penetrate through the bottom of the connecting casing 2 and are sequentially sleeved with a flat gasket 11 and a spring gasket 10, the top end of the spring gasket 10 is provided with a fastening nut 9 in threaded connection with the connecting post rods 12, the use of the outer sleeve 5 and the connecting post rods 12 is beneficial to sealing a flow channel sleeve 16 inside, and the use of the flat gasket 11 and the spring gasket 10 prevents the occurrence of gaps between the outer sleeve 5 and the connecting casing 2 and the outlet valve body 13.

The implementation scenario is specifically as follows:

when the utility model is used, the assembled inner device is arranged inside the liquid outlet valve body 13 through the limiting shaft post 7, the outer sleeve 5 is sleeved outside the inner device, the top end of the outer sleeve 5 is connected with the connecting shell 2, then the connecting shell 2 and the outer sleeve 5 can be fixed by using a plurality of connecting post rods 12 and fastening nuts 9, the leakage of the gap between the outer sleeve 5 and the connecting shell 2 and the liquid outlet valve body 13 can be prevented by using the spring gasket 10 and the flat gasket 11, the sealing gasket 25, the mechanical sealing assembly 24 and the sealing gland 3 are sleeved outside the driven shaft post 14 in sequence, the gap between the sealing gland 3 and the limiting shaft post 4 can be sealed by using the sealing gasket 25 and the mechanical sealing assembly 24, and the top of the connecting shell 2 can be blocked by using the sealing gland 3, and the gland 3 is fixed on the inner side of the connecting casing 2 by using a gland bolt 23, after the installation of the gland 3 is completed, the driven shaft column 14 and the power shaft 8 are fixedly connected by using the connecting jacket 21, so that the power shaft 8 can drive a plurality of guide impellers 15 installed on the impeller shaft column 6 to rotate on the inner side of the flow passage sleeve 16 to achieve the drainage effect.

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 utility model, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the utility model can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. The utility model provides a vertical multistage pipeline pump, includes vertical motor (1), its characterized in that: a power shaft (8) is arranged inside the bottom end of the vertical motor (1), a connecting jacket (21) is arranged outside the bottom end of the power shaft (8), a driven shaft column (14) is arranged on the inner side of the bottom of the connecting jacket (21), a plurality of jacket bolts (22) are connected inside one side of the connecting jacket (21), a limiting shaft column (4) is fixedly connected to the bottom of the driven shaft column (14), a sealing sleeve (26) is movably sleeved on the outer side of the limiting shaft column (4), a top sealing sleeve (27) is movably sleeved on the outer side of the sealing sleeve (26), an impeller shaft column (6) is fixedly connected to the bottom of the limiting shaft column (4), a plurality of guide impellers (15) which are movably sleeved with the impeller shaft column (6) are arranged at the bottom of the top sealing sleeve (27), and a flow channel sleeve (16) is arranged between every two adjacent guide impellers (15), the bottom sealing sleeve (18) is movably sleeved outside the bottom end of the guide impeller (15) at the bottom end, and the bottom of the impeller shaft column (6) is fixedly connected with a limiting shaft column (7).

2. A vertical multistage pipe pump as claimed in claim 1, wherein: a plurality of pin grooves (17) are formed in the front inner portion of the impeller shaft column (6), and pin keys which sequentially penetrate through the guide impeller (15) and the inner portion of the impeller shaft column (6) are arranged in the pin grooves (17).

3. A vertical multistage pipe pump as claimed in claim 1, wherein: the bottom of vertical motor (1) is through bolt fixedly connected with connection cover shell (2), the bottom of connecting cover shell (2) is provided with outside sleeve pipe (5), the bottom of outside sleeve pipe (5) is provided with out liquid valve body (13), spacing jack-post (7) are located the inside of going out liquid valve body (13).

4. A vertical multistage pipe pump according to claim 3, characterized in that: go out the outside fixedly connected with a plurality of connecting post poles (12) at liquid valve body (13) top, it is a plurality of connecting post pole (12) all pass the bottom of connecting the cover shell (2) and cup jointed flat gasket (11) and spring shim (10) in proper order, the top of spring shim (10) is provided with and carries out threaded connection's fastening nut (9) with connecting post pole (12).

5. A vertical multistage pipe pump according to claim 3, characterized in that: sealing gland (3) are installed to the inboard on connecting cover shell (2) top, mechanical seal subassembly (24) have been cup jointed in the inboard activity on sealing gland (3) top, mechanical seal subassembly (24) are located the outside of driven jack-post (14) and carry out swing joint with driven jack-post (14), the bottom of mechanical seal subassembly (24) is provided with seal ring (25) that carry out the activity and cup joint with driven jack-post (14), the outside on sealing gland (3) top is provided with a plurality ofly and is connected cover shell (2) and carry out threaded connection's gland bolt (23).

6. A vertical multistage pipe pump as claimed in claim 1, wherein: the bottom end of the impeller shaft column (6) is in threaded connection with a first fastening threaded sleeve (19), and a second fastening threaded sleeve (20) in threaded connection with the impeller shaft column (6) is arranged at the bottom end of the first fastening threaded sleeve (19).