CN216642568U

CN216642568U - Centrifugal pump water inlet and outlet section with automatic exhaust function

Info

Publication number: CN216642568U
Application number: CN202123360702.5U
Authority: CN
Inventors: 李明勇
Original assignee: Shanghai Tonglian Pump Group Co ltd
Current assignee: Shanghai Tonglian Pump Group Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-05-31
Anticipated expiration: 2031-12-28

Abstract

The utility model relates to a centrifugal pump business turn over water section with self-bleeding function relates to the field of centrifugal pump, and it includes business turn over water section body, and the both sides of business turn over water section body are provided with inlet tube and outlet pipe, run through on the last lateral wall of outlet pipe and have seted up the exhaust hole, have the sealing member in closed exhaust hole at one side hinged joint that the exhaust hole is close to business turn over water section body, and the sealing member is located the outlet pipe. According to the centrifugal pump, the exhaust holes are formed in the upper side wall of the exhaust pipe, the sealing element is hinged to one side, close to the water inlet and outlet section body, of the exhaust holes, and water flow can extrude and exhaust air in the pump body towards the exhaust holes in the use process of the centrifugal pump, so that the effect of automatic exhaust is achieved; after the water level in the water outlet pipe rises, the water flow can push the sealing element to seal the exhaust hole to realize sealing.

Description

Centrifugal pump water inlet and outlet section with automatic exhaust function

Technical Field

The application relates to the field of centrifugal pumps, in particular to a centrifugal pump water inlet and outlet section with an automatic exhaust function.

Background

The centrifugal pump is a pump for conveying a liquid by centrifugal force generated when an impeller rotates. The centrifugal pump is an important pump product in fluid machinery, is suitable for pumping water and other liquid with low viscosity, and has the advantages of large flow range, stable flow and pressure, high rotating speed, compact structure, light weight, convenient and reliable operation and low maintenance cost.

In the related art, the centrifugal pump comprises a pump body and a motor, wherein the pump body comprises a water inlet section and a water outlet section and a middle section, when the centrifugal pump works, air in the pump body needs to be discharged firstly, and the centrifugal pump can work normally after the pump body is filled with liquid. Usually, a hole is arranged at the exhaust end of the water inlet and outlet section, and then a bolt is screwed for sealing, so that the exhaust valve can be closed only by screwing out the bolt for exhaust when in use.

In view of the above-mentioned related art, the inventor considers that the bolt needs to be unscrewed by a tool every time water is pumped, and the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the exhaust of the centrifugal pump, the application provides a centrifugal pump water inlet and outlet section with an automatic exhaust function, and the centrifugal pump water inlet and outlet section has an automatic exhaust effect.

The application provides a centrifugal pump business turn over water section with automatic exhausting function adopts following technical scheme:

the utility model provides a centrifugal pump business turn over water section with automatic exhausting function, includes business turn over water section body, the both sides of business turn over water section body are provided with inlet tube and outlet pipe, run through on the last lateral wall of outlet pipe and seted up the exhaust hole is close to one side hinged joint of business turn over water section body has the seal the sealing member in exhaust hole, the sealing member is located in the outlet pipe.

By adopting the technical scheme, the water outlet pipe is provided with the exhaust hole, the sealing element is hinged on one side of the exhaust hole close to the water inlet and outlet section body, when the water pump is used, water is filled into the pump body, and air in the pump body is extruded by water flow and is discharged from the exhaust hole; along with the water level in the water outlet pipe increases, the water flow starts to push the sealing piece to approach the exhaust hole, when the water outlet pipe is filled with liquid, the sealing piece closes the exhaust hole, and along with the increase of the hydraulic pressure in the water outlet pipe, the sealing piece is closed more tightly.

Optionally, a smooth sealing plane is arranged on the periphery of the hole opening of the exhaust hole in the water outlet pipe, and the sealing element is a valve with a plane sealing surface.

Through adopting above-mentioned technical scheme, set up sealed plane and set up the sealing member into the sealed face for planar valve at the exhaust hole one end that is located in the outlet pipe, it is more reliable to seal the exhaust hole with planar valve and the cooperation of sealed plane to the plane is more convenient for process.

Optionally, a sealing ring is arranged on the valve at a position corresponding to the sealing surface.

Through adopting above-mentioned technical scheme, set up the sealing washer on the valve and can effectively improve sealing performance, the prevention leaks.

Optionally, a limiting rod for limiting the opening angle of the valve is fixed in the water outlet pipe, and one end, far away from the water inlet pipe, of the valve is erected on the limiting rod.

By adopting the technical scheme, the limiting rod is arranged to limit the opening angle of the air valve, and the air valve can rapidly close the exhaust hole by a short stroke after the water level in the water outlet pipe rises.

Optionally, one side of the valve, which is far away from the exhaust hole, is set to be a wedge-shaped surface, which is gradually far away from the exhaust hole along the water outlet direction.

Through adopting above-mentioned technical scheme, set up the valve into the wedge with the one side that the exhaust hole was kept away from, can increase rivers to the thrust of valve, promote the valve and press the pressure in exhaust hole department, make the valve close more tightly.

Optionally, a spoiler is fixed to one side of the air valve, which is far away from the exhaust hole, and when the air valve is closed, the surface of the spoiler is perpendicular to the water outlet direction.

Through adopting above-mentioned technical scheme, keep away from exhaust hole one side at the valve and set up the spoiler, in the use, rivers promote the spoiler motion, and the spoiler promotes the valve to exhaust hole one side, and along with the water level risees, the valve can be closed to the spoiler, and simultaneously, along with rivers increase, the power of closing the valve also crescent, can make the valve close more tightly.

Optionally, the length of the spoiler along the axial direction of the exhaust hole is smaller than the radius of the water outlet pipe.

By adopting the technical scheme, the length of the spoiler is set to be smaller than the radius of the water outlet pipe, and only when the height of water flow in the water outlet pipe reaches the set height, the water flow pushes the spoiler to close the air valve, so that air in the pump body can be discharged more thoroughly; if the length of the spoiler is set to be longer, when the water level in the water outlet pipe rises to a half position, water flow can push the spoiler to close the air valve, so that air in the pump body is not completely discharged, and the operation of the centrifugal pump is influenced.

Optionally, an outer inserting ring and an inner inserting ring are coaxially and integrally arranged on one side of the water inlet and outlet section body, the inner inserting ring is communicated with the water inlet pipe, a space between the outer inserting ring and the inner inserting ring is communicated with the water outlet pipe, a shaft hole is formed in the water inlet and outlet section body, and the shaft hole is coaxially arranged relative to the inner inserting ring.

Optionally, the outer plug ring internal diameter is 180mm-200mm, the inner plug ring internal diameter is 137mm-147mm, the outlet pipe internal diameter with the inlet pipe internal diameter is 45mm-55mm, the inlet pipe with the tip of outlet pipe all is provided with the ring flange, the ring flange external diameter is 160mm-170mm, ring flange thickness is 15mm-25mm, two the distance is 340mm-350mm between the ring flange, the inlet pipe axis with business turn over water section body bottom distance is 85mm-95mm, the shaft hole internal diameter is 16mm-26 mm.

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

the exhaust hole is formed in the upper side wall of the water outlet pipe, the sealing element is hinged to one side, close to the water inlet and outlet section body, of the exhaust hole, when the centrifugal pump starts to pump water, air in the pump body can be extruded by water flow and is discharged from the exhaust hole, the water flow starts to push the sealing element to be close to the exhaust hole along with the increase of the water level in the water outlet pipe, when the water outlet pipe is filled with the water flow, the sealing element seals the exhaust hole, and the sealing element is closed more tightly along with the increase of the water pressure in the water outlet pipe;

the wedge-shaped surface is arranged on one side of the air valve, which is far away from the exhaust hole, so that when the air valve is pushed by water flow, the thrust of the water flow to the air valve can be increased by the wedge-shaped surface, the force of the air valve for closing the exhaust hole is increased, and the air valve is closed more tightly;

through keeping away from exhaust hole one side at the valve and setting up the spoiler, when centrifugal pump normal work, rivers in the play water pipe can promote the spoiler, and the spoiler drives the valve and rotates closed exhaust hole around the hinge to along with the rivers velocity of flow increases, rivers increase the thrust of spoiler, and the power that makes the valve close the exhaust hole is also big more, thereby makes the valve close more tightly.

Drawings

FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present application;

FIG. 2 is a schematic view of a structure of a discharge valve according to embodiment 1 of the present application;

FIG. 3 is a schematic view of a structure of a discharge valve in accordance with embodiment 2 of the present application;

fig. 4 is a schematic view of the structure of the exhaust valve according to embodiment 3 of the present application.

Reference numerals are as follows: 1. a water inlet and outlet section body; 11. a water inlet pipe; 12. a water outlet pipe; 121. an exhaust hole; 122. sealing the plane; 13. a flange plate; 14. an outer plug-in ring; 15. an inner insertion ring; 16. a shaft hole; 2. an exhaust valve; 21. an air valve; 211. a wedge-shaped surface; 212. a spoiler; 213. a hinge; 22. a limiting rod; 23. and (5) sealing rings.

Detailed Description

Example 1:

the utility model provides a centrifugal pump business turn over water section with automatic exhaust function, refer to fig. 1, including business turn over water section body 1, coaxial an organic whole is provided with outer plug ring 14 and interior plug ring 15 in one side of business turn over water section body 1, business turn over water section body 1's both sides still integrative are provided with inlet tube 11 and outlet pipe 12, inlet tube 11 and the coaxial setting of outlet pipe 12, the flange dish 13 of connecting other parts is provided with at the tip homogeneous body of inlet tube 11 and outlet pipe 12, inlet tube 11 is linked together with interior plug ring 15, space between outer plug ring 14 and the interior plug ring 15 is linked together with outlet pipe 12, shaft hole 16 has been seted up on the business turn over water section body 1, shaft hole 16 and the coaxial setting of interior plug ring 15. An exhaust hole 121 is opened on the upper side of the water outlet pipe 12, and an exhaust valve 2 is arranged at the exhaust hole 121.

Referring to fig. 1 and 2, the discharge valve 2 includes a sealing member for closing the discharge hole 121 and a stopper rod 22 for limiting an opening angle of the valve 21. The sealing element is set as an air valve 21, the air valve 21 is a circular flat plate, the air valve 21 is installed at one side of the exhaust hole 121 close to the water inlet and outlet section body 1 through a hinge 213 and is positioned in the water outlet pipe 12, and the rotation axis of the hinge 213 is perpendicular to the axis of the water outlet pipe 12. An annular seal plane 122 is provided on the exhaust hole 121 on the orifice periphery side near the valve 21, and a seal ring 23 is fixed to the valve 21 at a position corresponding to the seal plane 122. When the water outlet pipe 12 is used, the air valve 21 rotates towards the exhaust hole 121 under the action of water flow, and when the water flow fills the whole water outlet pipe 12, the air valve 21 closes the exhaust hole 121.

The limiting rod 22 is an L-shaped rod, one end of the limiting rod 22 is welded and fixed on one side, away from the valve 21 rotating hinge 213, of the exhaust hole 121, the other end of the limiting rod 22 faces the valve 21, and the valve 21 is lapped on the limiting rod 22 in a free state, so that the valve 21 is in a half-open state.

The structure size of the water inlet pipe is set to be that the inner diameter of an outer plug ring 14 is 180mm-200mm, the inner diameter of an inner plug ring 15 is 137mm-147mm, the inner diameter of a water outlet pipe 12 and the inner diameter of a water inlet pipe 11 are 45mm-55mm, the outer diameter of a flange plate 13 is 160mm-170mm, the thickness of the flange plate 13 is 15mm-25mm, the distance between the two flange plates 13 is 340mm-350mm, the distance between the axis of the water inlet pipe 11 and the bottom of a water inlet and outlet section body 1 is 85mm-95mm, and the inner diameter of a shaft hole 16 is 16mm-26 mm.

The implementation principle of the embodiment 1 of the application is as follows: one side of the valve 21 is lapped on the limiting rod 22 in a half-open state under a free state by opening the exhaust hole 121 on the upper side of the water outlet pipe 12 and installing the valve 21 at the exhaust hole 121 through the hinge 213; when the centrifugal pump starts to work, air in the pump body is pushed by water flow and is discharged from the exhaust hole 121; when the water level in the water outlet pipe 12 becomes higher, the water flow pushes the air valve 21 to gradually approach the exhaust hole 121; when the water flow is full of the water outlet pipe 12, the air valve 21 closes the exhaust hole 121, and the air valve 21 closes more tightly along with the increase of the water pressure in the water outlet pipe 12; compared with the prior art, the manual operation is not needed, and the use is more convenient.

Example 2:

referring to fig. 3, embodiment 2 of the present application is different from embodiment 1 in that a side of the damper 21 away from the gas discharge hole 121 is disposed to be gradually away from the wedge surface 211 of the gas discharge hole 121 in the water flow direction.

The implementation principle of embodiment 2 of the present application is as follows: during use, the wedge surface 211 can increase the thrust of the water flow to the air valve 21, thereby increasing the upward pressure of the air valve 21, so that the air valve 21 is tightly closed on the sealing plane 122, and the air valve 21 is tightly closed.

Example 3:

referring to fig. 4, the difference between embodiment 3 of the present application and embodiment 1 is that a spoiler 212 is integrally disposed on a side of the air valve 21 away from the exhaust hole 121, the spoiler 212 is disposed on a side close to the rotation hinge 213 of the air valve 21, when the air valve 21 is closed, a plate surface of the spoiler 212 is perpendicular to an axis of the outlet pipe 12, and a length of the spoiler 212 along the axis of the exhaust hole 121 is smaller than a radius of the outlet pipe 12.

The implementation principle of embodiment 3 of the application is as follows: during normal operation, as the water level in the water outlet pipe 12 increases, the water flow impacts on the flow blocking plate 212, the flow blocking plate 212 deflects and drives the air valve 21 to rotate to approach the air outlet hole 121, and as the water flow increases and the water level increases, the force of the water flow acting on the flow blocking plate 212 increases, so that the force of the air valve 21 closing on the air outlet hole 121 also increases, and the air valve 21 is closed more tightly.

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 centrifugal pump business turn over water section with automatic exhausting function which characterized in that: including business turn over water section body (1), the both sides of business turn over water section body (1) are provided with inlet tube (11) and outlet pipe (12), it has seted up exhaust hole (121) to run through on the last lateral wall of outlet pipe (12) exhaust hole (121) are close to install the seal in one side hinge (213) of business turn over water section body (1) the sealing member of exhaust hole (121), the sealing member is located in outlet pipe (12).

2. The water inlet and outlet section of the centrifugal pump with the automatic exhaust function as claimed in claim 1, characterized in that: the exhaust hole (121) is positioned on the periphery of the hole opening in the water outlet pipe (12) and is provided with a smooth sealing plane (122), and the sealing element is an air valve (21) with a plane sealing surface.

3. A centrifugal pump water inlet and outlet section with automatic exhaust function as claimed in claim 2, wherein: and a sealing ring (23) is arranged on the valve (21) corresponding to the sealing surface.

4. A centrifugal pump water inlet and outlet section with automatic exhaust function as claimed in claim 3, wherein: the water outlet pipe (12) is internally fixed with a limiting rod (22) for limiting the opening angle of the air valve (21), and one end of the air valve (21), which is far away from the water inlet pipe (11), is overlapped on the limiting rod (22).

5. A centrifugal pump water inlet and outlet section with automatic exhaust function as claimed in claim 4, characterized in that: one side of the valve (21) far away from the exhaust hole (121) is set to be a wedge-shaped surface (211) which is gradually far away from the exhaust hole (121) along the water outlet direction.

6. A centrifugal pump water inlet and outlet section with automatic exhaust function as claimed in claim 4, characterized in that: a spoiler (212) is fixed on one side of the air valve (21) far away from the exhaust hole (121), and when the air valve (21) is closed, the surface of the spoiler (212) is perpendicular to the water outlet direction.

7. A centrifugal pump water inlet and outlet section with automatic exhaust function as claimed in claim 6, characterized in that: the length of the spoiler (212) along the axial direction of the exhaust hole (121) is smaller than the radius of the water outlet pipe (12).

8. A centrifugal pump water inlet and outlet section with automatic exhaust function as claimed in claim 1, wherein: the coaxial integrative outer plug ring (14) and the interior plug ring (15) that are provided with of business turn over water section body (1) one side, interior plug ring (15) intercommunication inlet tube (11), outer plug ring (14) with space between interior plug ring (15) with outlet pipe (12) intercommunication, shaft hole (16) have been seted up on business turn over water section body (1), shaft hole (16) are relative interior plug ring (15) coaxial setting.

9. A centrifugal pump water inlet and outlet section with automatic air discharge function as claimed in claim 8, wherein: the inner diameter of the outer inserting ring (14) is 180-200 mm, the inner diameter of the inner inserting ring (15) is 137-147 mm, the inner diameter of the water outlet pipe (12) and the inner diameter of the water inlet pipe (11) are both 45-55 mm, the end portions of the water inlet pipe (11) and the water outlet pipe (12) are both provided with a flange (13), the outer diameter of the flange (13) is 160-170 mm, the thickness of the flange (13) is 15-25 mm, the distance between the two flanges (13) is 340-350 mm, the distance between the axis of the water inlet pipe (11) and the bottom of the water inlet and outlet section body (1) is 85-95 mm, and the inner diameter of the shaft hole (16) is 16-26 mm.