CN216111438U - Vertical middle-open double-suction centrifugal pump with good sealing performance - Google Patents
Vertical middle-open double-suction centrifugal pump with good sealing performance Download PDFInfo
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- CN216111438U CN216111438U CN202122012871.3U CN202122012871U CN216111438U CN 216111438 U CN216111438 U CN 216111438U CN 202122012871 U CN202122012871 U CN 202122012871U CN 216111438 U CN216111438 U CN 216111438U
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Abstract
The utility model relates to the technical field of centrifugal pumps and discloses a vertical middle-open double-suction centrifugal pump with good sealing performance, which comprises a pump body, wherein a driving shaft is arranged in the middle of the pump body, the driving shaft penetrates through the left end and the right end of the pump body, a sealing mechanism is arranged in the driving shaft, the sealing mechanism comprises a main sealing ring, the main sealing ring is arranged on the outer wall of the driving shaft, a balancing weight is arranged around the main sealing ring, an auxiliary sealing ring is arranged on one side of the main sealing ring, a clamping groove is formed in the outer wall of the driving shaft, and the middle of the auxiliary sealing ring is clamped with the clamping groove. According to the utility model, the main sealing ring is arranged on the outer wall of the driving shaft, the balancing weight is arranged around the main sealing ring, and the density of the balancing weight is greater than that of the main sealing ring, so that the centrifugal force of the main sealing ring can be increased, the periphery of the main sealing ring can be in close contact with the inner wall of the sealing groove, an excellent sealing effect is achieved, and the problem of poor sealing in the prior art is solved.
Description
Technical Field
The utility model relates to the technical field of centrifugal pumps, in particular to a vertical middle-open double-suction centrifugal pump with good sealing performance.
Background
A centrifugal pump (centrifugal pump) is a pump that transports a liquid by centrifugal force generated when an impeller rotates, and is operated by centrifugal motion of water by rotation of the impeller. Before the water pump is started, the pump shell and the water suction pipe are filled with water, then the motor is started, the pump shaft drives the impeller and the water to rotate at a high speed, the water is thrown to the outer edge of the impeller to be thrown into a water pressure pipeline of the water pump through a flow channel of the volute-shaped pump shell. After the existing centrifugal pump is used for a long time, the contact part of the driving shaft and the pump body can be sealed untight, so that the situations of water leakage and oil leakage can be caused, and the existing centrifugal pump can not be normally used.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides a vertical type middle-open double-suction centrifugal pump with good sealing performance, so as to solve the problems in the background technology.
(II) technical scheme
In order to achieve the purpose, the utility model provides the following technical scheme: a vertical split double suction centrifugal pump with good sealing performance comprises a pump body, wherein a driving shaft is arranged in the middle of the pump body, the driving shaft penetrates through the left end and the right end of the pump body, and a sealing mechanism is arranged inside the driving shaft;
the sealing mechanism comprises a main sealing ring, the main sealing ring is arranged on the outer wall of the driving shaft, and balancing weights are arranged around the main sealing ring.
Preferably, flange is installed at both ends around the pump body, the bottom of the pump body is connected with the base, the base is equipped with more than four, and the inlet end pipeline passes through the bolt and is connected with flange.
Preferably, the both ends cover of drive shaft is equipped with the bearing, the bearing groove has been seted up at the both ends of the pump body, thereby bearing fixed mounting makes the drive shaft rotate through setting up the bearing in the inside of bearing groove.
Preferably, the top of the pump body is provided with the intake antrum, the middle part of drive shaft is connected with the pump impeller, the pump impeller is located the inside of intake antrum, rotates through the pump impeller to can reach the purpose of carrying liquid.
Preferably, one side of main seal circle is provided with the secondary seal circle, the joint groove has been seted up to the outer wall of drive shaft, the middle part and the joint groove joint of secondary seal circle, the contact of the inner wall with the pump body around the secondary seal circle is through secondary seal circle and main seal circle combined action to can reach sealed effect.
Preferably, the seal groove has been seted up to the inner wall of the pump body, the inside joint with the seal groove around the main seal circle, one side that the main seal circle is close to vice sealing washer is connected with the lug, the lug contacts with the outer wall of vice sealing washer, makes vice sealing washer and main seal circle can the in close contact with.
Preferably, the top of the main seal ring is connected with a convex block, the outer wall of the convex block is in contact with the inner wall of the pump body, and the convex block is arranged, so that the centrifugal force of the main seal ring can be increased.
Preferably, the inner wall of the pump body is provided with a clamping groove, the middle part of the main sealing ring is connected with a clamping block, and the clamping block is clamped with the clamping groove, so that the main sealing ring can be tightly connected and is not easy to loosen.
Preferably, the cavity has been seted up around the main seal circle, balancing weight and cavity joint through the inside balancing weight that sets up at the main seal circle to can increase the centrifugal force of main seal circle, thereby when the body uses, rotate through the drive shaft, with the main seal circle whipping, because the effect of centrifugal force, can reach good sealed effect with the inner wall in close contact with of seal groove around making the main seal circle.
Compared with the prior art, the utility model provides the vertical middle-open double-suction centrifugal pump with good sealing performance, which has the following beneficial effects:
1. according to the utility model, the main sealing ring is arranged on the outer wall of the driving shaft, the balancing weight is arranged around the main sealing ring, and the density of the balancing weight is greater than that of the main sealing ring, so that the centrifugal force of the main sealing ring can be increased, the periphery of the main sealing ring can be in close contact with the inner wall of the sealing groove, an excellent sealing effect is achieved, and the problem of poor sealing in the prior art is solved.
2. According to the utility model, the clamping groove is formed in the inner wall of the body, and the clamping block is arranged in the middle of the main sealing ring, so that the clamping block and the clamping groove are only required to be clamped and connected in the installation process, the disassembly process is also convenient, and the sealing effect can be further improved through the combined action of the auxiliary sealing ring and the main sealing ring.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view in elevation of the present invention;
FIG. 3 is an enlarged view of A of FIG. 1 according to the present invention;
fig. 4 is an internal structural view of the main seal ring of the present invention.
In the figure: the pump body 1, the connecting flange 2, the base 3, the driving shaft 5, the bearing 601, the bearing groove 602, the water inlet cavity 603, the pump impeller 604, the auxiliary sealing ring 605, the clamping groove 606, the main sealing ring 607, the convex block 608, the clamping groove 609, the clamping block 610, the convex block 611, the cavity 612, the weighting block 613 and the sealing groove 614.
Detailed Description
Referring to fig. 1-4, the present invention provides a technical solution: a vertical type middle-open double-suction centrifugal pump with good sealing performance comprises a pump body 1, wherein a driving shaft 5 is arranged in the middle of the pump body 1, the driving shaft 5 penetrates through the left end and the right end of the pump body 1, and a sealing mechanism is arranged inside the driving shaft 5;
the sealing mechanism comprises a main sealing ring 607, the main sealing ring 607 is arranged on the outer wall of the driving shaft 5, a balancing weight 613 is arranged around the main sealing ring 607, the main sealing ring 607 is arranged on the outer wall of the driving shaft 5, the balancing weight 613 is arranged around the main sealing ring 607, the density of the balancing weight 613 is greater than that of the main sealing ring 607, the centrifugal force of the main sealing ring 607 can be increased, the periphery of the main sealing ring 607 can be in close contact with the inner wall of the sealing groove 614, a good sealing effect is achieved, and the problem of untight sealing in the prior art is solved.
Connecting flange 2 is installed at both ends around the pump body 1, and the bottom of the pump body 1 is connected with base 3, and base 3 is equipped with more than four, and the inlet end pipeline passes through the bolt and is connected with connecting flange 2.
The both ends cover of drive shaft 5 is equipped with bearing 601, and bearing groove 602 has been seted up at the both ends of the pump body 1, and bearing 601 fixed mounting is in the inside of bearing groove 602, thereby makes drive shaft 5 can rotate through setting up bearing 601.
The top of the pump body 1 is provided with a water inlet chamber 603, the middle part of the driving shaft 5 is connected with a pump impeller 604, the pump impeller 604 is positioned inside the water inlet chamber 603, and the pump impeller 604 rotates, so that the purpose of conveying liquid can be achieved.
One side of main seal ring 607 is provided with secondary seal ring 605, and joint groove 606 has been seted up to the outer wall of drive shaft 5, and secondary seal ring 605's middle part and joint groove 606 joint, the contact of the inner wall with the pump body 1 around secondary seal ring 605, through secondary seal ring 605 and main seal ring 607 combined action to can reach sealed effect.
A sealing groove 614 is formed in the inner wall of the pump body 1, the periphery of the main sealing ring 607 is clamped with the inside of the sealing groove 614, a protruding piece 611 is connected to one side, close to the auxiliary sealing ring 605, of the main sealing ring 607, and the protruding piece 611 is in contact with the outer wall of the auxiliary sealing ring 605, so that the auxiliary sealing ring 605 can be in close contact with the main sealing ring 607.
The top of the main seal ring 607 is connected with a projection 608, the outer wall of the projection 608 contacts with the inner wall of the pump body 1, and the projection 608 is arranged, so that the centrifugal force of the main seal ring 607 can be increased.
The inner wall of the pump body 1 is provided with a clamping groove 609, the middle part of the main sealing ring 607 is connected with a clamping block 610, and the clamping block 610 is clamped with the clamping groove 609, so that the main sealing ring 607 can be tightly connected and is not easy to loosen.
The cavity 612 is formed around the main sealing ring 607, the balancing weight 613 is clamped with the cavity 612, the balancing weight 613 is arranged inside the main sealing ring 607, so that the centrifugal force of the main sealing ring 607 can be increased, when the body 1 is used, the main sealing ring 607 is swung by rotating the driving shaft 5, and due to the action of the centrifugal force, the periphery of the main sealing ring 607 can be in close contact with the inner wall of the sealing groove 614, so that a good sealing effect is achieved.
When the sealing device is used, when the driving shaft 5 rotates, the main sealing ring 607 is arranged outside the driving shaft 5, the balancing weight 613 is arranged around the main sealing ring 607, and the density of the balancing weight 613 is greater than that of the main sealing ring 607, so that the centrifugal force of the main sealing ring 607 can be increased, the periphery of the main sealing ring 607 can be in close contact with the inner wall of the sealing groove 614, a good sealing effect is achieved, and the problem of untight sealing in the prior art is solved.
In conclusion, the main sealing ring 607 is arranged on the outer wall of the driving shaft 5, the balancing weight 613 is arranged around the main sealing ring 607, and the density of the balancing weight 613 is greater than that of the main sealing ring 607, so that the centrifugal force of the main sealing ring 607 can be increased, the periphery of the main sealing ring 607 can be in close contact with the inner wall of the sealing groove 614, a good sealing effect is achieved, and the problem of poor sealing in the prior art is solved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a vertical well open double entry centrifugal pump that sealing performance is good, includes the pump body (1), its characterized in that: a driving shaft (5) is arranged in the middle of the pump body (1), the driving shaft (5) penetrates through the left end and the right end of the pump body (1), and a sealing mechanism is arranged inside the driving shaft (5);
sealing mechanism is including main sealing washer (607), the outer wall at drive shaft (5) is installed in main sealing washer (607), be provided with balancing weight (613) around main sealing washer (607).
2. The vertical type middle-open double-suction centrifugal pump with good sealing performance as claimed in claim 1, is characterized in that: connecting flanges (2) are installed at the front end and the rear end of the pump body (1), a base (3) is connected to the bottom of the pump body (1), and the base (3) is provided with more than four.
3. The vertical type middle-open double-suction centrifugal pump with good sealing performance as claimed in claim 1, is characterized in that: the both ends cover of drive shaft (5) is equipped with bearing (601), bearing groove (602) have been seted up at the both ends of the pump body (1), bearing (601) fixed mounting is in the inside of bearing groove (602).
4. The vertical type middle-open double-suction centrifugal pump with good sealing performance as claimed in claim 1, is characterized in that: the top of the pump body (1) is provided with a water inlet cavity (603), the middle part of the driving shaft (5) is connected with a pump impeller (604), and the pump impeller (604) is positioned inside the water inlet cavity (603).
5. The vertical type middle-open double-suction centrifugal pump with good sealing performance as claimed in claim 1, is characterized in that: one side of the main sealing ring (607) is provided with an auxiliary sealing ring (605), the outer wall of the driving shaft (5) is provided with a clamping groove (606), the middle part of the auxiliary sealing ring (605) is clamped with the clamping groove (606), and the periphery of the auxiliary sealing ring (605) is in contact with the inner wall of the pump body (1).
6. The vertical type middle-open double-suction centrifugal pump with good sealing performance as claimed in claim 1, is characterized in that: seal groove (614) have been seted up to the inner wall of the pump body (1), the inside joint with seal groove (614) around main seal circle (607), one side that main seal circle (607) is close to secondary seal circle (605) is connected with fin (611), the outer wall contact of fin (611) and secondary seal circle (605).
7. The vertical type middle-open double-suction centrifugal pump with good sealing performance as claimed in claim 6, is characterized in that: the top of the main sealing ring (607) is connected with a lug (608), and the outer wall of the lug (608) is in contact with the inner wall of the pump body (1).
8. The vertical type middle-open double-suction centrifugal pump with good sealing performance as claimed in claim 7, is characterized in that: the inner wall of the pump body (1) is provided with a clamping groove (609), the middle of the main sealing ring (607) is connected with a clamping block (610), and the clamping block (610) is clamped with the clamping groove (609).
9. The vertical type middle-open double-suction centrifugal pump with good sealing performance as claimed in claim 8, is characterized in that: a cavity (612) is formed around the main sealing ring (607), and the balancing weight (613) is clamped with the cavity (612).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122012871.3U CN216111438U (en) | 2021-08-25 | 2021-08-25 | Vertical middle-open double-suction centrifugal pump with good sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122012871.3U CN216111438U (en) | 2021-08-25 | 2021-08-25 | Vertical middle-open double-suction centrifugal pump with good sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216111438U true CN216111438U (en) | 2022-03-22 |
Family
ID=80728435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122012871.3U Active CN216111438U (en) | 2021-08-25 | 2021-08-25 | Vertical middle-open double-suction centrifugal pump with good sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216111438U (en) |
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2021
- 2021-08-25 CN CN202122012871.3U patent/CN216111438U/en active Active
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