CN220505380U - Centrifugal pump sealing structure - Google Patents
Centrifugal pump sealing structure Download PDFInfo
- Publication number
- CN220505380U CN220505380U CN202321863525.9U CN202321863525U CN220505380U CN 220505380 U CN220505380 U CN 220505380U CN 202321863525 U CN202321863525 U CN 202321863525U CN 220505380 U CN220505380 U CN 220505380U
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- China
- Prior art keywords
- pipe fitting
- limiting
- centrifugal pump
- fixedly connected
- limiting cylinder
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- 238000007789 sealing Methods 0.000 title claims abstract description 50
- 230000002093 peripheral effect Effects 0.000 claims description 14
- 230000000694 effects Effects 0.000 abstract description 14
- 230000000712 assembly Effects 0.000 abstract description 3
- 238000000429 assembly Methods 0.000 abstract description 3
- 238000011010 flushing procedure Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003250 coal slurry Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a centrifugal pump sealing structure, which relates to the technical field of centrifugal pumps and comprises a pump body, wherein two sides of the pump body, which correspond to each other, are communicated with first pipe fittings, one ends of the two first pipe fittings, which are far away from the pump body, are respectively provided with a second pipe fitting, and clamping assemblies for clamping and limiting the second pipe fittings are respectively arranged on the two first pipe fittings; and limiting cylinders are arranged in the two first pipe fittings. According to the centrifugal pump sealing structure, the limiting cylinder arranged in the first pipe fitting and the connecting assembly on the limiting cylinder are utilized, so that the effect of conveniently and quickly disassembling and assembling the sealing ring is achieved, and when the sealing ring is worn under long-time flushing, a worker can conveniently and quickly disassemble and assemble the worn sealing ring, so that the effect of quickly replacing the sealing ring is achieved, and the sealing property between the connecting position of the first pipe fitting and the connecting position of the second pipe fitting can be improved to a certain extent.
Description
Technical Field
The utility model relates to the technical field of centrifugal pumps, in particular to a centrifugal pump sealing structure.
Background
A centrifugal pump is a pump that conveys liquid by centrifugal force generated when an impeller rotates. And the centrifugal pump can be widely used for conveying slurry containing solid particles in industries such as electric power, metallurgy, coal, building materials and the like in the using process of the centrifugal pump. Such as hydraulic ash removal in a thermal power plant, ore pulp transportation in a metallurgical concentrating plant, coal slurry transportation in a coal washing plant, heavy medium transportation and the like. When the centrifugal pump works, the pump needs to be placed on land, the water suction pipe needs to be placed in water, and the pump needs to be started
In addition, in the using process of the centrifugal pump, the external pipeline is usually required to be connected by the flange, and when the external pipeline is connected to a pipe fitting on the centrifugal pump by adopting the flange connection mode, the external pipeline is easy to misplace due to poor connection effect, so that the stability effect between the connection positions is reduced to a certain extent; moreover, when the sealing ring on the centrifugal pump is flushed down through the conveying medium for a long time, the situation that the sealing ring is damaged is easily caused, and if the damaged sealing ring is not replaced, the situation that the conveyed medium permeates out from the worn part of the sealing ring occurs, and in the prior art, the sealing ring on the centrifugal pump is inconvenient to disassemble, assemble and replace the worn sealing ring on the centrifugal pump after being worn, so that the sealing effect of the centrifugal pump is reduced to a certain extent, and the use of the centrifugal pump is affected to a certain extent.
Disclosure of Invention
The utility model aims to provide a centrifugal pump sealing structure which solves the defects in the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions: the centrifugal pump sealing structure comprises a pump body, wherein first pipe fittings are communicated with two sides of the pump body, which correspond to each other, second pipe fittings are arranged at one ends of the two first pipe fittings, which are far away from the pump body, and clamping assemblies for clamping and limiting the second pipe fittings are arranged on the two first pipe fittings; a limiting cylinder is arranged in each of the two first pipe fittings, and a sealing ring is sleeved on each limiting cylinder and positioned between the first pipe fitting and the second pipe fitting; and the limiting cylinder is provided with a connecting component for clamping and limiting the sealing ring.
Further, the fixing rings are fixedly arranged in the two first pipe fittings, a plurality of clamping grooves are formed in the fixing rings, and a plurality of clamping pins matched with the clamping grooves are fixedly connected to one side, close to the fixing rings, of the limiting cylinder.
Further, the connecting assembly comprises a plurality of expansion plates which are arranged on the peripheral surface of the limiting cylinder in a sliding mode, the sealing ring is sleeved on the peripheral surfaces of the expansion plates, and elastic pieces are arranged between the expansion plates and the limiting cylinder.
Further, each elastic piece is a spring, one end of the spring is fixedly connected to the limiting cylinder, and the other end of the spring is fixedly connected to the expansion plate; the periphery of the limiting cylinder is fixedly connected with a plurality of telescopic rods, the output ends of the telescopic rods are respectively and fixedly connected to the expansion plates, and the springs are respectively sleeved on the periphery of the telescopic rods.
Further, the clamping assembly comprises a mounting ring fixedly mounted on the peripheral surface of the first pipe fitting, a plurality of connecting seats are fixedly connected to the peripheral surface of the mounting ring, C-shaped rotating plates are rotatably arranged on the connecting seats respectively, screw rods are rotatably arranged on the C-shaped rotating plates, extrusion plates are connected to the peripheral surface of the screw rods in a threaded mode, and the second pipe fitting is located between the first pipe fitting and the extrusion plates.
Further, a guide rod is fixedly connected to the C-shaped rotating plate, and the extruding plate is slidably sleeved on the peripheral surface of the guide rod.
Further, one end of the screw rod, which is far away from the connecting seat, is fixedly connected with the handle, a limiting pin is connected to the handle in a threaded mode, and the limiting pin is abutted to the C-shaped rotating plate.
In the technical scheme, the utility model provides a centrifugal pump sealing structure, which has the following beneficial effects: through utilizing the first pipe fitting on the pump body and the clamping assembly on the first pipe fitting, the effect that can conveniently be connected to the first pipe fitting with the second pipe fitting has been played, consequently can improve the stability between first pipe fitting and the second pipe fitting junction to a certain extent.
Through utilizing the coupling assembling who sets up on the inside spacing section of thick bamboo of first pipe fitting and spacing section of thick bamboo, played the effect that can conveniently carry out quick assembly disassembly to the sealing washer for the sealing washer when receiving wearing and tearing under the long-time scouring, can make things convenient for the staff to carry out quick assembly disassembly to the sealing washer of wearing and tearing, thereby reached the effect that can carry out quick replacement to the sealing washer, consequently can improve the leakproofness between first pipe fitting and the second pipe fitting junction to a certain extent.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic view of the overall structure provided by an embodiment of the present utility model;
FIG. 2 is a schematic view of a partially disassembled structure of FIG. 1 according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a partial structure of FIG. 2 according to an embodiment of the present utility model;
FIG. 4 is a schematic front view of the structure of FIG. 1 according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a partial structure of FIG. 4 according to an embodiment of the present utility model;
FIG. 6 is a schematic diagram of the structure shown in FIG. 5A according to an embodiment of the present utility model;
fig. 7 is a schematic structural diagram of the limiting cylinder in fig. 2 according to an embodiment of the present utility model;
FIG. 8 is a schematic diagram of the structure shown in FIG. 7B according to an embodiment of the present utility model;
FIG. 9 is a schematic diagram of the pump body of FIG. 1 according to an embodiment of the present utility model;
fig. 10 is a schematic structural diagram of fig. 9 at C according to an embodiment of the present utility model.
Reference numerals illustrate:
1. a pump body; 2. a first pipe fitting; 3. a second pipe fitting; 41. a fixing ring; 42. a clamping groove; 43. a limiting cylinder; 44. a bayonet lock; 45. an expansion plate; 46. an elastic member; 47. a seal ring; 48. a telescopic rod; 51. a mounting ring; 52. a connecting seat; 53. a C-shaped rotating plate; 54. a screw; 55. an extrusion plate; 56. a guide rod; 57. a handle; 58. and a limiting pin.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
Referring to fig. 1-10, a centrifugal pump sealing structure provided by an embodiment of the utility model includes a pump body 1, two sides of the pump body 1 corresponding to each other are respectively communicated with a first pipe fitting 2, one end of each first pipe fitting 2 far away from the pump body 1 is respectively provided with a second pipe fitting 3, and clamping assemblies for clamping and limiting the second pipe fittings 3 are respectively arranged on the two first pipe fittings 2; the two first pipe fittings 2 are internally provided with limiting barrels 43, each limiting barrel 43 is sleeved with a sealing ring 47, and the sealing rings 47 are positioned between the first pipe fittings 2 and the second pipe fittings 3; the limiting cylinder 43 is provided with a connecting group for clamping and limiting the sealing ring 47; by utilizing the first pipe fitting 2 on the pump body 1 and the clamping assembly on the first pipe fitting 2, the effect of being convenient for connecting the second pipe fitting 3 to the first pipe fitting 2 is achieved, so that the stability between the connection part of the first pipe fitting 2 and the second pipe fitting 3 can be improved to a certain extent; through utilizing the coupling assembling who sets up on the inside spacing section of thick bamboo 43 of first pipe fitting 2 and spacing section of thick bamboo 43, played the effect that can conveniently carry out quick assembly disassembly to sealing washer 47 for sealing washer 47 when receiving wearing and tearing under the long-time washing, can make things convenient for the staff to carry out quick assembly disassembly to the sealing washer 47 of wearing and tearing, thereby reached the effect that can carry out quick replacement to sealing washer 47, consequently can improve the leakproofness between the junction of first pipe fitting 2 and second pipe fitting 3 to a certain extent.
Specifically, the inside of the two first pipe fittings 2 is fixedly provided with a fixed ring 41, the fixed ring 41 is provided with a plurality of clamping grooves 42, and one side of the limiting cylinder 43, which is close to the fixed ring 41, is fixedly connected with a plurality of clamping pins 44 which are matched with the clamping grooves 42; by utilizing the clamping grooves 42 on the fixed ring 41 and the clamping pins 44 on the limiting cylinder 43, the limiting cylinder 43 can be clamped into the clamping grooves 42 on the fixed ring 41 under the action of the clamping pins 44, so that the limiting cylinder 43 can be quickly disassembled and assembled.
Specifically, the connecting assembly includes a plurality of expansion plates 45 slidably disposed on the circumferential surface of the limiting cylinder 43, a sealing ring 47 is sleeved on the circumferential surfaces of the expansion plates 45, and elastic members 46 are disposed between each expansion plate 45 and the limiting cylinder 43; by utilizing the plurality of expansion plates 45 on the circumferential surface of the limiting cylinder 43, after the sealing ring 47 is sleeved on the limiting cylinder 43, each expansion plate 45 can slide under the action of the elastic piece 46, so that the plurality of expansion plates 45 can expand the sealing ring 47 sleeved on the limiting cylinder 43, and the sealing ring 47 can be clamped and limited on the limiting cylinder 43.
Specifically, each elastic member 46 is a spring, one end of the spring is fixedly connected to the limiting cylinder 43, and the other end of the spring is fixedly connected to the expansion plate 45; the periphery of the limiting cylinder 43 is also fixedly connected with a plurality of telescopic rods 48, the output ends of the telescopic rods 48 are respectively and fixedly connected to the expansion plates 45, and the springs are respectively sleeved on the periphery of the telescopic rods 48; by using springs, each expansion plate 45 can slide under the action of spring force, so as to expand the sealing ring 47 sleeved on the limiting cylinder 43; by using the telescopic rod 48, the spring can be restrained.
Specifically, the clamping assembly comprises a mounting ring 51 fixedly mounted on the peripheral surface of the first pipe fitting 2, a plurality of connecting seats 52 are fixedly connected to the peripheral surface of the mounting ring 51, a C-shaped rotating plate 53 is rotatably arranged on each connecting seat 52, a screw 54 is rotatably arranged on each C-shaped rotating plate 53, an extrusion plate 55 is in threaded connection with the peripheral surface of each screw 54, and the second pipe fitting 3 is positioned between the first pipe fitting 2 and the extrusion plate 55; by utilizing the clamping assembly, after the second pipe fitting 3 is connected to the first pipe fitting 2 through the flange, the C-shaped rotating plate 53 on the connecting seat 52 can be turned over, after the C-shaped rotating plate is rotated to a proper position, the extruding plate 55 can move in a direction close to the first pipe fitting 2 under the driving of the screw 54 by rotating the screw 54 on the C-shaped rotating plate 53, so that the second pipe fitting 3 can be clamped between the limiting first pipe fitting 2 and the extruding plate 55, and the stabilizing effect between the connecting positions of the first pipe fitting 2 and the second pipe fitting 3 is improved to a certain extent.
Specifically, a guide rod 56 is fixedly connected to the C-shaped rotating plate 53, and a squeeze plate 55 is slidably sleeved on the peripheral surface of the guide rod 56; by using the guide rod 56, the movement direction of the pressing plate 55 can be regulated.
Specifically, one end of the screw 54 far away from the connecting seat 52 is fixedly connected with a handle 57, the handle 57 is in threaded connection with a limiting pin 58, and the limiting pin 58 is abutted on the C-shaped rotating plate 53; by using the handle 57, the effect of being able to facilitate the rotation of the drive screw 54 is achieved; after the second pipe fitting 3 is clamped by the extrusion plate 55, the limiting pin 58 on the handle 57 is rotated to enable the limiting pin 58 to be abutted against the C-shaped rotating plate 53, so that the effect of limiting the rotation of the screw 54 is achieved, and the situation that the screw 54 rotates due to vibration of the pump body 1 in the operation process of the pump body 1 and further influences the clamping effect of the second pipe fitting 3 is avoided as much as possible.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (7)
1. The utility model provides a centrifugal pump seal structure, includes the pump body (1), its characterized in that, the both sides that the pump body (1) corresponds each other all are linked together first pipe fitting (2), and two the one end that the pump body (1) was kept away from to first pipe fitting (2) all is provided with second pipe fitting (3), and two all be provided with on the first pipe fitting (2) be used for carrying out the centre gripping spacing to second pipe fitting (3);
a limiting cylinder (43) is arranged in each of the two first pipe fittings (2), a sealing ring (47) is sleeved on each limiting cylinder (43), and the sealing rings (47) are positioned between the first pipe fittings (2) and the second pipe fittings (3);
and the limiting cylinder (43) is provided with a connecting component for clamping and limiting the sealing ring (47).
2. The centrifugal pump sealing structure according to claim 1, wherein the inside of each of the two first pipe fittings (2) is fixedly provided with a fixing ring (41), the fixing ring (41) is provided with a plurality of clamping grooves (42), and one side of the limiting cylinder (43) close to the fixing ring (41) is fixedly connected with a plurality of clamping pins (44) matched with each clamping groove (42).
3. The centrifugal pump sealing structure according to claim 2, wherein the connecting assembly comprises a plurality of expansion plates (45) slidably arranged on the circumferential surfaces of the limiting cylinders (43), the sealing rings (47) are sleeved on the circumferential surfaces of the expansion plates (45), and elastic pieces (46) are arranged between the expansion plates (45) and the limiting cylinders (43).
4. A centrifugal pump sealing structure according to claim 3, wherein each elastic member (46) is a spring, one end of which is fixedly connected to the limiting cylinder (43), and the other end of which is fixedly connected to the expansion plate (45);
the periphery of the limiting cylinder (43) is fixedly connected with a plurality of telescopic rods (48), the output ends of the telescopic rods (48) are respectively and fixedly connected to the expansion plates (45), and the springs are respectively sleeved on the periphery of the telescopic rods (48).
5. A centrifugal pump sealing structure according to claim 1, wherein the clamping assembly comprises a mounting ring (51) fixedly mounted on the peripheral surface of the first pipe fitting (2), a plurality of connecting seats (52) are fixedly connected to the peripheral surface of the mounting ring (51), a C-shaped rotating plate (53) is rotatably arranged on each connecting seat (52), a screw (54) is rotatably arranged on each C-shaped rotating plate (53), a squeezing plate (55) is connected to the peripheral surface of the screw (54) in a threaded manner, and the second pipe fitting (3) is located between the first pipe fitting (2) and the squeezing plate (55).
6. The centrifugal pump sealing structure according to claim 5, wherein the C-shaped rotating plate (53) is fixedly connected with a guide rod (56), and the pressing plate (55) is slidably sleeved on the peripheral surface of the guide rod (56).
7. The centrifugal pump sealing structure according to claim 5, wherein one end of the screw rod (54) away from the connecting seat (52) is fixedly connected with the handle (57), a limiting pin (58) is connected to the handle (57) in a threaded manner, and the limiting pin (58) abuts against the C-shaped rotating plate (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321863525.9U CN220505380U (en) | 2023-07-17 | 2023-07-17 | Centrifugal pump sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321863525.9U CN220505380U (en) | 2023-07-17 | 2023-07-17 | Centrifugal pump sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220505380U true CN220505380U (en) | 2024-02-20 |
Family
ID=89866635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321863525.9U Active CN220505380U (en) | 2023-07-17 | 2023-07-17 | Centrifugal pump sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220505380U (en) |
-
2023
- 2023-07-17 CN CN202321863525.9U patent/CN220505380U/en active Active
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