CN215171015U - Large-scale dive tubular pump sealing device - Google Patents
Large-scale dive tubular pump sealing device Download PDFInfo
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- CN215171015U CN215171015U CN202121509442.0U CN202121509442U CN215171015U CN 215171015 U CN215171015 U CN 215171015U CN 202121509442 U CN202121509442 U CN 202121509442U CN 215171015 U CN215171015 U CN 215171015U
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Abstract
The utility model discloses a large-scale diving through-flow pump sealing device, belonging to the diving through-flow pump sealing field; a sealing device of a large submersible tubular pump comprises a sealing section, a first flange, a second flange, a positioning ring, a sealing ring, a liquid guide body and a steel ring; the sealing structure is reduced by arranging the sealing section into a complete circular ring, so that the sealing property and the convenience of sealing operation are improved; the first flange is welded at one end of the sealing section, the second flange is arranged on the positioning circular ring, the sealing ring is arranged between the first flange and the second flange, and the first flange and the second flange are mutually compressed through bolt connection, so that the sealing ring seals a gap between the positioning circular ring and the first flange, and water leakage can be effectively prevented; the steel ring is arranged at the gap between the repositioning ring and the liquid guiding body, so that when the positioning ring is directly welded with the liquid guiding body, the filling amount of the welding wire is too large, and the welding wire is easy to penetrate.
Description
Technical Field
The disclosure belongs to the field of submersible tubular pump sealing, and particularly relates to a large submersible tubular pump sealing device.
Background
At present, a plurality of large-scale submersible tubular pump stations require a dry pit to be provided with a motor-water pump unit, so that the requirement on the sealing performance of a water pump is high; in the traditional tubular pump, after a water pump, a planetary gear reduction box and a submersible motor are well butted, a sealing section part is installed at last, and the sealing section consists of an upper semicircular ring and a lower semicircular ring, so that the sealing difficulty is high, and the operation is complex.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the disclosed aim is to provide a large-scale submersible tubular pump sealing device, which solves the problems of large sealing difficulty and complex operation in the prior art.
The purpose of the disclosure can be realized by the following technical scheme:
a sealing device of a large-scale submersible tubular pump comprises a sealing section and a liquid guide body, and is characterized in that the sealing section is annular;
furthermore, a positioning ring is welded on the outer side of the liquid guide body, the positioning ring is coaxial with the sealing section, a first flange is welded at one end of the sealing section, the first flange is sleeved on the outer circle of the positioning ring, and the inner circle of the first flange is in clearance fit with the outer circle of the positioning ring; the outer circle of the positioning circular ring is sleeved with a second flange, the inner circle of the second flange is in clearance fit with the outer circle of the positioning circular ring, and the first flange is connected with the second flange through a bolt; and a sealing ring is arranged between the first flange and the second flange and sleeved on the positioning ring.
Furthermore, a steel ring is arranged at a gap between the positioning circular ring and the liquid guiding body, and the steel ring is welded with the positioning circular ring and the liquid guiding body respectively.
Furthermore, the inner circle of the sealing ring is in interference fit with the outer circle of the positioning ring, an annular groove is formed in the outer circle of the positioning ring, and the sealing ring can be matched with the annular groove.
Further, a plurality of threaded holes which are uniformly distributed in the circumferential direction are formed in the first flange, a plurality of through holes which are uniformly distributed in the circumferential direction are formed in the second flange, the through holes can be in one-to-one correspondence with the threaded holes, one end of the stud bolt penetrates through the through holes and is screwed into the threaded holes, and the other end of the stud bolt is screwed into the nut.
Further, the tubular pump includes the sealing device of any of claims 1-4
The beneficial effect of this disclosure: the sealing structure is reduced by arranging the sealing section into a complete circular ring, so that the sealing property and the convenience of sealing operation are improved; the first flange is welded at one end of the sealing section, the second flange is arranged on the positioning circular ring, the sealing ring is arranged between the first flange and the second flange, and the first flange and the second flange are mutually compressed through bolt connection, so that the sealing ring seals a gap between the positioning circular ring and the first flange, and water leakage can be effectively prevented; the steel ring is arranged at the gap between the repositioning ring and the liquid guiding body, so that when the positioning ring is directly welded with the liquid guiding body, the filling amount of the welding wire is too large, the welding wire is easy to penetrate, and the coaxiality of the positioning ring and the sealing section is difficult to guarantee.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic overall structure diagram of an embodiment of the present disclosure;
FIG. 2 is an enlarged schematic view of the structure at I of the disclosed embodiment;
fig. 3 is an enlarged schematic view of the structure at position II of the embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
As shown in fig. 1, the sealing device of the large submersible tubular pump comprises a plurality of sealing sections 1 and a liquid guide body 3, wherein the sealing sections 1 are annular, and the sealing sections 1 are connected through flanges, so that sealing is realized; compared with the prior art that the sealing section 1 is in a semicircular ring shape, the sealing section 1 is a complete circular ring, so that the sealing structure can be reduced, and the sealing performance and the convenience of sealing operation are improved;
as the arrow direction shown in fig. 1 is a water flow direction, water flow flows inside the sealing section 1 and is easy to leak from between the sealing section 1 and the liquid guiding body 3, so that the sealing structure between the sealing section 1 and the liquid guiding body 3 is particularly important;
as shown in fig. 2, the cross section of the liquid guiding body 3 is trapezoidal, a positioning ring 31 is welded on the outer side of the inverted liquid 3, the positioning ring 31 is coaxial with the sealing section 1, a steel ring 32 is arranged at a gap between the positioning ring 31 and the liquid guiding body 3, and the steel ring 32 is respectively welded with the positioning ring 31 and the liquid guiding body 3, so that the phenomenon that when the positioning ring 31 is directly welded with the liquid guiding body 3, the filling amount of a welding wire is too large, the welding wire is easy to penetrate, and the coaxiality of the positioning ring 31 and the sealing section 1 is difficult to ensure is avoided;
one end of the sealing section 1 is welded with a first flange 4, the first flange 4 is sleeved on the excircle of the positioning ring 31, the inner circle of the first flange 4 is in clearance fit with the excircle of the positioning ring 31, and the excircle of the sealing section 1 is sleeved with a sealing ring 2; the outer circle of the positioning circular ring 31 is sleeved with a second flange 5, the inner circle of the second flange 5 is in clearance fit with the outer circle of the positioning circular ring 31, and the first flange 4 is connected with the second flange 5 through a bolt; a sealing ring 6 is arranged between the first flange 5 and the second flange 4, the sealing ring 6 is sleeved on the positioning circular ring 31, and the sealing ring 6 can be extruded and deformed by controlling the second flange 5 to be tightly pressed on the first flange 4, so that a gap between the positioning circular ring 31 and the first flange 5 is blocked, and water leakage can be effectively prevented;
in this embodiment, a plurality of threaded holes are uniformly distributed in the circumferential direction on the first flange 4, a plurality of through holes are uniformly distributed in the circumferential direction on the second flange 5, the plurality of through holes can correspond to the plurality of threaded holes one to one, one end of the stud bolt 7 penetrates through the through holes and is screwed into the threaded holes, and the other end of the stud bolt 7 is screwed into the nut 8, so that the first flange 5 is tightly pressed on the second flange 4;
as shown in fig. 3, in this embodiment, the inner circle of the sealing ring 6 is in interference fit with the outer circle of the positioning ring 31, the annular groove 311 is formed in the outer circle of the positioning ring 31, the sealing ring 6 is sleeved on the positioning ring 31 by using the elasticity of the sealing ring 6 and is moved into the annular groove 311, the annular groove 311 is matched with each other, the nut 8 is screwed, the annular groove 311 is completely filled by the sealing ring 6, and then the gap between the positioning ring 31 and the first flange 5 is sealed, so that the sealing effect is achieved.
The working principle is as follows:
the sealing structure is reduced by arranging the sealing section 1 into a complete circular ring, so that the sealing property and the convenience of sealing operation are improved; a first flange 4 is welded at one end of the sealing section 1, a second flange 5 is arranged on the positioning circular ring 3, a sealing ring 6 is arranged between the first flange 4 and the second flange 5, and the first flange 4 and the second flange 5 are mutually compressed through bolt connection, so that a gap between the positioning circular ring 31 and the first flange 5 is blocked by the sealing ring 6, and water leakage can be effectively prevented; be provided with steel ring 32 through the gap department between relocation ring 31 and the drain body 3, when avoiding location ring 31 direct with lead the welding of liquid 3 for the filling amount of welding wire is too big, leads to easily welding to wear, and is difficult to guarantee location ring 31 and seal segment 1's axiality.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (5)
1. A sealing device of a large submersible tubular pump comprises a sealing section (1) and a liquid guide body (3), and is characterized in that the sealing section (1) is annular;
the outer side of the liquid guide body (3) is fixedly connected with a positioning ring (31), the positioning ring (31) is coaxial with the sealing section (1), one end of the sealing section (1) is welded with a first flange (4), the first flange (4) is sleeved on the outer circle of the positioning ring (31), and the inner circle of the first flange (4) is in clearance fit with the outer circle of the positioning ring (31); a second flange (5) is sleeved on the excircle of the positioning circular ring (31), the inner circle of the second flange (5) is in clearance fit with the excircle of the positioning circular ring (31), and the first flange (4) is connected with the second flange (5) through bolts; a sealing ring (6) is arranged between the first flange (4) and the second flange (5), and the sealing ring (6) is sleeved on the positioning ring (31).
2. A large submersible through-flow pump sealing device according to claim 1, characterized in that a steel ring (32) is arranged at a gap between the positioning ring (31)1 and the liquid guide body (3), and the steel ring (32) is welded with the positioning ring (31) and the liquid guide body (3), respectively.
3. The sealing device of the large-scale submersible tubular pump according to claim 1, wherein the inner circle of the sealing ring (6) is in interference fit with the outer circle of the positioning ring (31), the outer circle of the positioning ring (31) is provided with an annular groove (311), and the sealing ring (6) can be matched with the annular groove (311).
4. The sealing device of the large submersible tubular pump according to claim 1, wherein the first flange (4) is provided with a plurality of threaded holes which are uniformly distributed in the circumferential direction, the second flange (5) is provided with a plurality of through holes which are uniformly distributed in the circumferential direction, the through holes can correspond to the threaded holes one by one, one end of the stud bolt (7) penetrates through the through holes and is screwed into the threaded holes, and the other end of the stud bolt (7) is screwed into the nut (8).
5. A large submersible through-flow pump, characterized in that it comprises a sealing device according to any of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121509442.0U CN215171015U (en) | 2021-07-01 | 2021-07-01 | Large-scale dive tubular pump sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121509442.0U CN215171015U (en) | 2021-07-01 | 2021-07-01 | Large-scale dive tubular pump sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215171015U true CN215171015U (en) | 2021-12-14 |
Family
ID=79400704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121509442.0U Active CN215171015U (en) | 2021-07-01 | 2021-07-01 | Large-scale dive tubular pump sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215171015U (en) |
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2021
- 2021-07-01 CN CN202121509442.0U patent/CN215171015U/en active Active
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