CN217176966U - Water inlet and outlet section of centrifugal pump - Google Patents
Water inlet and outlet section of centrifugal pump Download PDFInfo
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- CN217176966U CN217176966U CN202123360792.8U CN202123360792U CN217176966U CN 217176966 U CN217176966 U CN 217176966U CN 202123360792 U CN202123360792 U CN 202123360792U CN 217176966 U CN217176966 U CN 217176966U
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Abstract
The utility model relates to a technical field of water pump, a centrifugal pump business turn over water section is disclosed, it includes business turn over water section body, the coaxial an organic whole in one side of business turn over water section body is provided with outer plug ring and interior plug ring, one side of business turn over water section body is provided with the water inlet with interior plug ring intercommunication, the opposite side is provided with the delivery port, space and delivery port intercommunication between outer plug ring and the interior plug ring, the shaft hole has been seted up on the business turn over water section body, the coaxial setting of the relative plug ring in shaft hole, offer the water cooling channel who is used for communicateing shaft hole and delivery port on the business turn over water section body. This application has the wearing and tearing that reduce pivot and axle sleeve rotation in-process, improves pivot and axle sleeve life's effect.
Description
Technical Field
The utility model belongs to the technical field of the technique of water pump and specifically relates to a centrifugal pump business turn over water section is related to.
Background
At present, centrifugal pumps are mainly used for conveying liquid by means of centrifugal force generated when impellers rotate, can be widely applied to industries such as electric power, metallurgy, coal, building materials and the like, and are used for conveying slurry containing solid particles. Such as hydraulic ash removal in thermal power plants, pulp transportation in metallurgical dressing plants, coal slurry and dense medium transportation in coal washing plants, etc.
In the correlation technique, a centrifugal pump, including the pump frame, inlet and liquid outlet have been seted up respectively to the both sides of pump frame, are fixed with the end cover on the pump frame, the pump frame in the end cover internal fixation has the middle section impeller, and the frame internal rotation is provided with the pivot with the coaxial fixed of middle section impeller, is provided with the driving motor who is used for rotating the pivot on the end cover, be fixed with in the frame with be used for restricting the pivot along the rotation seat of axis position, rotate the seat internal coaxial be fixed with the axle sleeve of the coaxial setting of pivot.
In view of the above-mentioned related technologies, the inventor believes that when the centrifugal pump is in use, the rotating shaft and the shaft sleeve rotate in a relative friction manner, and then a large amount of heat is generated between the rotating shaft and the shaft sleeve, so that the abrasion of the rotating shaft and the shaft sleeve is increased, and the service life of the rotating shaft and the shaft sleeve is shortened.
SUMMERY OF THE UTILITY MODEL
In order to reduce the wearing and tearing of pivot and axle sleeve rotation in-process, improve the life of pivot and axle sleeve, this application provides a centrifugal pump business turn over water section.
The application provides a centrifugal pump business turn over water section adopts following technical scheme:
the utility model provides a centrifugal pump business turn over water section, includes business turn over water section body, the coaxial an organic whole in one side of business turn over water section body is provided with outer plug ring and inner plug ring, one side of business turn over water section body be provided with the water inlet of inner plug ring intercommunication, the opposite side is provided with the delivery port, outer plug ring with space between the inner plug ring with the delivery port intercommunication, the shaft hole has been seted up on the business turn over water section body, the shaft hole is relative the coaxial setting of inner plug ring, offer on the business turn over water section body and be used for the intercommunication the shaft hole with the water-cooling passageway of delivery port.
By adopting the technical scheme, the shaft sleeve is fixed in the shaft hole, the rotating shaft is rotatably connected on the shaft sleeve, and when the centrifugal pump works, water passing through the water inlet flows through the rotating shaft and the shaft sleeve through the shaft hole and flows out through the water cooling channel; by adopting the design, a layer of water film can be formed on the rotating shaft, a certain lubricating effect is achieved, abrasion between the shaft sleeve and the rotating shaft is reduced, the rotating shaft can be cooled through water, the phenomenon that more heat generated in the rotating process of the rotating shaft cannot be released is avoided, the abrasion between the rotating shaft and the shaft sleeve is easily increased, and therefore the service life of the rotating shaft and the shaft sleeve is prolonged to a certain extent.
Preferably, the water-cooling channel is obliquely arranged, and the height of one end, close to the shaft hole, of the water-cooling channel is lower than that of the other end of the water-cooling channel.
By adopting the technical scheme and the design, the liquid can be prevented from flowing to the water inlet from the water outlet, so that the stability of using the water cooling channel is improved.
Preferably, the bore diameter of the water-cooling channel is gradually reduced along the direction far away from the shaft hole.
Through adopting above-mentioned technical scheme, adopt such design can reduce the interior liquid refluence of water outlet and get into the water inlet, improved the stability of using the water-cooling passageway.
Preferably, the inner wall of the water cooling channel is fixed with a heat conducting convex strip along the extending direction.
Through adopting above-mentioned technical scheme, can increase through the heat conduction sand grip and business turn over water section area of contact between the body to can increase area of contact, thereby can be faster cool down.
Preferably, the heat conducting raised lines are spirally arranged in the water cooling channel.
Through adopting above-mentioned technical scheme, can reduce the space that water-cooling passageway exit end liquid flows on the one hand, make liquid be difficult for getting into in the inlet port by the liquid outlet refluence to improve the stability that uses cooling tube and use, can also increase the length of radiator strip, improved the radiating efficiency.
Preferably, a water outlet flange is fixed at an opening at one end of the water outlet, which is far away from the water inlet and outlet section body, and a plurality of water outlet bolt holes are formed in the water outlet flange in a circumferential array.
Through adopting above-mentioned technical scheme, adopt the water outlet flange to be connected with outside pipeline through water outlet bolt hole plug bolt to avoid delivery port liquid to take place to leak, improve the leakproofness of connecting.
Preferably, a water inlet flange is fixed at an opening at one end of the water inlet, which is far away from the water inlet and outlet section body, and a plurality of water inlet bolt holes are formed in the water inlet flange in a circumferential array.
Through adopting above-mentioned technical scheme, thereby adopt the flange of intaking to insert the connection that the bolt realized the pipeline through the bolt hole that intakes, can improve the compactness of connecting like this.
Preferably, the length of the water inlet and outlet section body is 360-370 mm, the width of the water inlet and outlet section body is 275-285 mm, the inner diameter of the outer plug-in ring is 250-270 mm, the inner diameter of the inner plug-in ring is 185-205 mm, and the inner diameter of the shaft hole is 27-37 mm.
Through adopting above-mentioned technical scheme, the structure that adopts such size to make can make the outer structure of device have better pleasing to the eye degree on the one hand, and on the other hand designs like this and more accords with mechanical requirement, can improve the intensity of structure better to improve the life of structure.
In summary, the present application includes at least one of the following beneficial technical effects:
the water cooling channel is adopted to enable liquid to flow through the contact position of the rotating shaft and the shaft sleeve, so that on one hand, a water film is formed on the surface of the rotating shaft, and the rotating friction force is reduced, thereby reducing the friction between the shaft sleeve and the rotating shaft, on the other hand, the heat generated by the rotating shaft and the shaft sleeve can be reduced, and the abrasion between the rotating shaft and the shaft sleeve support is reduced to a certain extent, thereby greatly prolonging the service life of the rotating shaft and the shaft sleeve;
the cooling channel is obliquely arranged, and the height of one end, close to the shaft hole, of the cooling channel is lower than that of the other end of the cooling channel, so that liquid in the water outlet can be reduced from entering the water cooling channel, the phenomenon that the normal use of the device is influenced by backflow is avoided, and the use stability of the water cooling channel is improved;
in being fixed in the water-cooling passageway through heat dissipation sand grip spiral, can increase the area of contact with cooling liquid on the one hand to improve the radiating efficiency, on the other hand can reduce the flow space that the water-cooling passageway is close to delivery port one end through the heat dissipation lug, thereby can reduce in the intraoral liquid refluence of delivery port and get into in the inlet, thereby improved the stability of using the water-cooling passageway.
Drawings
Fig. 1 is a sectional view of a water inlet and outlet section of a centrifugal pump according to embodiment 1 of the present application.
Fig. 2 is a sectional view of a water inlet and outlet section of a centrifugal pump according to embodiment 2 of the present application.
Reference numerals: 1. a water inlet bolt hole; 2. an outer plug-in ring; 3. an inner inserting ring; 4. a water outlet bolt hole; 5. a water inlet flange; 6. a water inlet; 7. a water inlet and outlet section body; 8. a shaft hole; 9. a water-cooling channel; 10. heat conducting convex strips; 11. a water outlet; 12. a water outlet flange; 13. and (6) end covers.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses a centrifugal pump business turn over water section.
Example 1:
referring to fig. 1, a centrifugal pump water inlet and outlet section comprises a water inlet and outlet section body 7, an outer inserting ring 2 and an inner inserting ring 3 are coaxially and integrally formed on the top of the water inlet and outlet section body 7, a water inlet 6 communicated with the inner inserting ring 3 is formed on one side of the water inlet and outlet section body 7, a water outlet 11 is formed on the other side of the water inlet and outlet section body 7, the water inlet 6 and the water outlet 11 are cylindrical, a water inlet flange 5 is welded and fixed on a section of opening of the water inlet 6 away from the water inlet and outlet section body 7, the water inlet flange 5 is circular, a plurality of water inlet bolt holes 1 are formed in the water inlet flange 5 in a circumferential array, a water outlet flange 12 is fixed on an opening of one end of the water outlet 11 away from the water inlet and outlet section body 7, the water outlet flange 12 is circular, a plurality of water outlet bolt holes 4 are formed in the circumferential array on the water outlet flange 12, a space between the outer inserting ring 2 and the inner inserting ring 3 is communicated with the water outlet 11, a shaft hole 8 is formed on the water inlet and outlet section body 7, the relative interpolation in shaft hole 8 encircles 3 coaxial setups, and business turn over water section body 7 bottom has end cover 13 in 8 opening part bolted connection in shaft hole, offers on the business turn over water section body 7 to be used for communicateing shaft hole 8 in the water-cooling channel 9 in hand hole, and water-cooling channel 9 is the slope form, and the one end height that water-cooling channel 9 is close to shaft hole 8 is less than the height of the other end. Adopt such design can make and form the space that flows between pivot and the axle sleeve, make water can form the one deck water film in the pivot, thereby reduce the frictional force between pivot and the axle sleeve, thereby reduce the wearing and tearing between pivot and the axle sleeve, thereby improve the life of pivot and axle sleeve, can make the heat that pivot and axle sleeve friction produced cool down in time through the circulation water, avoid increasing the wearing and tearing between pivot and the axle sleeve because the high temperature, thereby improve the life-span of receiving of pivot and axle sleeve.
The length of the water inlet and outlet section body 7 is 360-370 mm, the width of the water inlet and outlet section body 7 is 275-285 mm, the inner diameter of the outer plug ring 2 is 250-270 mm, the inner diameter of the inner plug ring 3 is 185-205 mm, the inner diameters of the water outlet 11 and the water inlet 6 are 90-110 mm, the outer diameters of the water outlet flange 12 and the water inlet flange 5 are 210-230 mm, the thicknesses of the water inlet flange 5 and the water outlet flange 12 are 20-30 mm, the distance between the water inlet flange 5 and the water outlet flange 12 is 450-465 mm, the distance between the axis of the water inlet flange 5 and the bottom of the water inlet and outlet section body 7 is 115-130 mm, the inner diameters of the water outlet bolt hole 4 and the water inlet bolt hole 1 are 115-130 mm, and the inner diameter of the shaft hole 8 is 27-37 mm. By adopting the principle of composite structure mechanics with the design, under the requirement of ensuring the structure size, the material can be better saved, the weight is reduced, the strength of the whole structure can be ensured, and the convenience of the structure use is improved.
The implementation principle of the embodiment 1 is as follows: fix the axle sleeve at axle hole 8 in the pivot in the axle sleeve internal rotation, fix end cover 13 through the bolt, water inlet 6 gets into liquid and discharges from delivery port 11 behind the middle section impeller, liquid in water inlet 6 gets into in the axle hole 8 in the space between pivot and business turn over water section body 7, flow to delivery port 11 after through water-cooling channel 9 with pivot and axle sleeve contact back in axle hole 8, adopt such design can through water lubrication pivot and axle sleeve, thereby reduce the frictional force between pivot and the axle sleeve, thereby reduce the wearing and tearing of pivot and axle sleeve, can also reduce the temperature of axle sleeve and pivot through the water that flows, avoid increasing the wearing and tearing between pivot and the axle sleeve because the high temperature, thereby the life of pivot and axle sleeve has been improved.
Example 2:
referring to fig. 2, the difference between a centrifugal pump water inlet and outlet section and embodiment 1 is that: the water cooling channel 9 is in a circular truncated cone shape, the water cooling channel 9 is gradually reduced along the direction far away from the shaft hole 8, so that the water outlet 11 is reduced to flow back to the water inlet 6, the inner wall of the water cooling channel 9 is fixedly provided with a heat conduction raised line 10 along the extending direction of the inner wall, and the heat conduction raised line 10 is in a spiral shape.
The implementation principle of the embodiment 2 is as follows: centrifugal pump during operation, when passing through water-cooling pipeline 9, under the effect of heat conduction sand grip 10, it is rotatory to delivery port 11 flow, adopt heat conduction sand grip 10 and the water-cooling channel 9 that is the round platform form, can make the water-cooling channel 9 be close to the flow space of the one end of delivery port 11 and reduce on the one hand, thereby can reduce water and get into in the water inlet 6 by delivery port 11 refluence, thereby avoid influencing the normal use of centrifugal pump, improve the stability of using, on the other hand can increase the area of contact with water through increasing the protruding 10 of heat conduction, increase the radiating efficiency, thereby can make the decline that the temperature of pivot and axle sleeve can be faster.
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 (8)
1. The utility model provides a centrifugal pump business turn over water section which characterized in that: including business turn over water section body (7), the coaxial an organic whole in one side of business turn over water section body (7) is provided with outer plug ring (2) and inner plug ring (3), one side of business turn over water section body (7) be provided with water inlet (6) of inner plug ring (3) intercommunication, the opposite side is provided with delivery port (11), outer plug ring (2) with space between inner plug ring (3) with delivery port (11) intercommunication, shaft hole (8) have been seted up on business turn over water section body (7), shaft hole (8) are relative inner plug ring (3) coaxial setting, offer on business turn over water section body (7) and be used for the intercommunication shaft hole (8) with the water-cooling passageway (9) of delivery port (11).
2. A centrifugal pump water inlet and outlet section according to claim 1, wherein: the water-cooling channel (9) is obliquely arranged, and the water-cooling channel (9) is close to one end of the shaft hole (8) and is lower than the other end of the shaft hole.
3. A centrifugal pump water inlet and outlet section according to claim 2, wherein: the aperture of the water-cooling channel (9) is gradually reduced along the direction far away from the shaft hole (8).
4. A centrifugal pump water inlet and outlet section according to claim 2 or 3, wherein: and heat conducting convex strips (10) are fixed on the inner wall of the water cooling channel (9) along the extension direction of the water cooling channel.
5. A centrifugal pump water inlet and outlet section according to claim 4, wherein: the heat conducting raised strips (10) are spirally arranged in the water cooling channel (9).
6. A centrifugal pump water inlet and outlet section according to claim 1, wherein: a water outlet flange (12) is fixed at an opening at one end of the water outlet (11) far away from the water inlet and outlet section body (7), and a plurality of water outlet bolt holes (4) are formed in the water outlet flange (12) in a circumferential array mode.
7. A centrifugal pump water inlet and outlet section according to claim 1 or 6, characterized in that: the water inlet (6) is far away from the opening at one end of the water inlet and outlet section body (7), a water inlet flange (5) is fixed at the opening, and a plurality of water inlet bolt holes (1) are formed in the water inlet flange (5) in a circumferential array mode.
8. A centrifugal pump water inlet and outlet section according to claim 1, wherein: the length of the water inlet and outlet section body (7) is 360-370 mm, the width of the water inlet and outlet section body (7) is 275-285 mm, the inner diameter of the outer plug ring (2) is 250-270 mm, the inner diameter of the inner plug ring (3) is 185-205 mm, and the inner diameter of the shaft hole (8) is 27-37 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123360792.8U CN217176966U (en) | 2021-12-28 | 2021-12-28 | Water inlet and outlet section of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123360792.8U CN217176966U (en) | 2021-12-28 | 2021-12-28 | Water inlet and outlet section of centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217176966U true CN217176966U (en) | 2022-08-12 |
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ID=82730899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123360792.8U Active CN217176966U (en) | 2021-12-28 | 2021-12-28 | Water inlet and outlet section of centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217176966U (en) |
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2021
- 2021-12-28 CN CN202123360792.8U patent/CN217176966U/en active Active
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