CN220227300U - Mechanical sealing device for submersible electric pump - Google Patents
Mechanical sealing device for submersible electric pump Download PDFInfo
- Publication number
- CN220227300U CN220227300U CN202321999731.2U CN202321999731U CN220227300U CN 220227300 U CN220227300 U CN 220227300U CN 202321999731 U CN202321999731 U CN 202321999731U CN 220227300 U CN220227300 U CN 220227300U
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- side wall
- plates
- mechanical seal
- knob
- electric pump
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- 238000007789 sealing Methods 0.000 title abstract description 26
- 230000001681 protective effect Effects 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 abstract description 4
- 210000001503 joint Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a mechanical sealing device for a submersible electric pump, which is characterized in that two fixing plates are symmetrically arranged on the side wall of a pump casing by taking a shaft rod as a center, a knob is rotatably connected to the side wall of one fixing plate, a threaded rod is arranged on the side wall of the knob, the threaded rod penetrates and stretches into the space between the two fixing plates, a mechanical sealing component is sleeved on the shaft rod and is abutted to the side wall of the casing, two clamping plates are symmetrically arranged between the two fixing plates, two ends of each clamping plate are provided with lug plates, threaded holes are formed in the side wall of each lug plate, the threaded rod penetrates through the threaded holes in a rotating mode, the threaded rod is driven to rotate by rotating the knob, the two clamping plates are pushed to be close to each other and clamp the mechanical sealing component by utilizing a screw rod structure, the mechanical sealing component is convenient to install, and the mechanical sealing component can be rapidly disassembled when replacement and maintenance are needed.
Description
Technical Field
The utility model relates to the technical field of sealing of submersible electric pumps, in particular to a mechanical sealing device for a submersible electric pump.
Background
The mechanical seal is a shaft seal device of a rotary machine. Such as centrifugal pumps, centrifuges, kettles, compressors and the like. Since the drive shaft extends through the device and is thus located inside and outside the device, there is a circumferential gap between the shaft and the device through which the medium in the device leaks outwards, and if the pressure in the device is below atmospheric pressure, air leaks into the device, so that a shaft seal means for preventing leakage is necessary. Shaft seals are of many kinds, and mechanical seals are the most important shaft sealing means in these devices in the world today because of their advantages, such as low leakage and long life.
However, the existing mechanical sealing device is usually fixed at the side wall shaft lever position of the pump by a screw, and when the mechanical sealing device needs to be overhauled and replaced, the mechanical sealing device is inconvenient to detach.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the utility model, which should not be used to limit the scope of the utility model.
The present utility model has been made in view of the above and/or problems occurring in the prior mechanical seal device for a submersible pump.
Therefore, the utility model aims to provide a mechanical sealing device for a submersible electric pump, two fixing plates are symmetrically arranged on the side wall of a pump casing by taking a shaft rod as a center, a knob is rotatably connected to the side wall of one fixing plate, a threaded rod is arranged on the side wall of the knob, the threaded rod penetrates and stretches into the space between the two fixing plates, a mechanical sealing component is sleeved on the shaft rod and is abutted to the side wall of the casing, two clamping plates are symmetrically arranged between the two fixing plates, lug plates are arranged at two ends of each clamping plate, threaded holes are formed in the side wall of each lug plate, the threaded rod penetrates through the threaded holes in a rotating mode, the threaded rod is driven to rotate by rotating the knob, the two clamping plates are pushed to be close to each other by utilizing a screw rod structure, the mechanical sealing component is convenient to install, and the mechanical sealing component can be rapidly disassembled when replacement and maintenance are needed.
In order to solve the technical problems, according to one aspect of the present utility model, the following technical solutions are provided:
a mechanical seal for an electric submersible pump, comprising:
the electric pump comprises an electric pump shell, wherein a shaft rod is arranged on the side wall of the electric pump shell, two fixing plates are symmetrically arranged on the side wall of the electric pump shell by taking the shaft rod as a center, a knob is rotatably connected to the side wall of one fixing plate, a threaded rod is arranged on the side wall of the knob, and the threaded rod penetrates through and stretches into the space between the two fixing plates;
the mechanical seal assembly is sleeved on the shaft rod body and is abutted with the side wall of the electric pump shell;
the clamping plates are two and are symmetrically located between the two fixing plates by taking the shaft rod as a center, the lug plates are installed on the symmetrical side walls of the clamping plates, one of the lug plates is provided with a threaded hole, and the threaded rod penetrates through the threaded hole in a rotating mode.
As a preferable mode of the mechanical seal device for the submerged electric pump, the mechanical seal assembly comprises a stationary ring fixing seat which is abutted against the side wall of the electric pump shell, a protective shell which is installed on the side wall of the stationary ring fixing seat, a stationary ring which is abutted against the side wall of the stationary ring fixing seat and is positioned in the protective shell, a movable ring which is coaxially connected with the stationary ring, a connecting sheet which is installed on the side wall of the movable ring and a first spring which is installed on the side wall of the connecting sheet.
As a preferable mode of the mechanical sealing device for the submersible electric pump, a guide rod is further arranged between the two fixing plates.
As a preferable mode of the mechanical sealing device for the submerged electric pump, a guiding hole is formed in the side wall of the other lug plate, and the guiding rod penetrates through the guiding hole.
As a preferable mode of the mechanical sealing device for the submerged electric pump, an anti-slip pad is arranged on the inner wall of the clamping plate.
As a preferable scheme of the mechanical sealing device for the submerged electric pump, the utility model further comprises a limiting component, the limiting assembly comprises a limiting shell arranged on the side wall of the fixed plate, a sliding groove arranged on the side wall of the limiting shell, a sliding block positioned in the sliding groove, a second spring arranged at the bottom of the sliding block and a clamping groove arranged at the top of the sliding block and matched with the knob.
Compared with the prior art: through set up two fixed plates at pump casing lateral wall with axostylus axostyle as central symmetry, one of them fixed plate lateral wall rotatable is connected with the knob, the threaded rod is installed to the knob lateral wall, the threaded rod runs through and stretches into between two fixed plates, mechanical seal subassembly cup joints on the axostylus axostyle and butt to the casing lateral wall, the symmetry is provided with two splint between two fixed plates, the otic placode is installed at splint both ends, threaded hole has been seted up to the otic placode lateral wall, threaded rod rotation runs through the screw hole, it is rotatory to drive the threaded rod through rotatory knob, utilize the lead screw structure to promote two splint to be close to each other and press from both sides tight mechanical seal subassembly, the convenience is installed mechanical seal subassembly, also can dismantle it fast when needs change the maintenance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following detailed description will be given with reference to the accompanying drawings and detailed embodiments, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained from these drawings without inventive faculty for a person skilled in the art. Wherein:
FIG. 1 is a diagram showing the overall construction of a mechanical seal device for a submersible pump according to the present utility model;
FIG. 2 is a diagram showing the construction of a casing of a mechanical seal device for a submersible electric pump according to the present utility model;
FIG. 3 is a view showing a structure of a clamping plate of a mechanical seal device for a submersible pump according to the present utility model;
FIG. 4 is a block diagram of a mechanical seal device limiting assembly for a submersible pump according to the present utility model;
fig. 5 is a structural view of a mechanical seal assembly of a mechanical seal device for a submersible electric pump according to the present utility model.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings.
Next, the present utility model will be described in detail with reference to the drawings, wherein the sectional view of the device structure is not partially enlarged to general scale for the convenience of description, and the drawings are only examples, which should not limit the scope of the present utility model. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.
The utility model provides a mechanical sealing device for a submersible electric pump, which is characterized in that two fixing plates are symmetrically arranged on the side wall of a pump casing by taking a shaft rod as the center, a knob is rotatably connected to the side wall of one fixing plate, a threaded rod is arranged on the side wall of the knob, the threaded rod penetrates and stretches into the space between the two fixing plates, a mechanical sealing component is sleeved on the shaft rod and is abutted to the side wall of the casing, two clamping plates are symmetrically arranged between the two fixing plates, two ends of each clamping plate are provided with lug plates, threaded holes are formed in the side wall of each lug plate, the threaded rod penetrates through the threaded holes in a rotating mode, the threaded rod is driven to rotate by rotating the knob, the two clamping plates are pushed to be close to each other and clamp the mechanical sealing component by utilizing a screw rod structure, the mechanical sealing component is convenient to install, and the mechanical sealing component can be rapidly disassembled when replacement and maintenance are needed.
Fig. 1 to 5 are schematic structural views showing an embodiment of a mechanical seal device for a submersible electric pump according to the present utility model, referring to fig. 1 to 5, the mechanical seal device for a submersible electric pump of the present embodiment includes an electric pump housing 100, a mechanical seal assembly 200, a clamping plate 300 and a limiting assembly 400.
The axostylus axostyle 110 is installed to electric pump casing 100 lateral wall, and two fixed plates 120 are installed to electric pump casing 100 lateral wall with axostylus axostyle 110 as central symmetry, and one of them fixed plate 120 lateral wall rotatable is connected with knob 130, and threaded rod 140 is installed to knob 130 lateral wall, and threaded rod 140 runs through and stretches into between two fixed plates 120, still installs guide bar 150 between two fixed plates 120, and threaded rod 140 other end passes through the bearing to be connected at another fixed plate 120 lateral wall, does not influence the rotation of threaded rod 140 when supporting threaded rod 140.
The mechanical seal assembly 200 is sleeved on a shaft of the shaft 110 and is connected with the side wall of the electric pump casing 100 in a butt joint mode, the mechanical seal assembly 200 comprises a stationary ring fixing seat 210, a protecting shell 220, a stationary ring 230, a movable ring 240, a connecting piece 250 and a first spring 260, wherein the stationary ring fixing seat 210 is connected with the side wall of the electric pump casing 100 in a butt joint mode, the protecting shell 220 is used for protecting the inner stationary ring 230, the movable ring 240, the connecting piece 250 and the first spring 260, a buckle structure is arranged between the protecting shell 220 and the stationary ring fixing seat 210, the protecting shell 220 is fixed on the side wall of the stationary ring fixing seat 210 through the buckle, a rubber cushion layer is arranged on the other side wall of the stationary ring fixing seat 210, friction force and tightness between the stationary ring fixing seat 210 and the side wall of the electric pump casing 100 can be increased, when the shaft 110 penetrates through the stationary ring fixing seat 210 and the protecting shell 220, the stationary ring fixing seat 210 is connected with the side wall of the electric pump casing 100 in a butt joint mode, the gap between the shaft 110 and the electric pump casing 100 is sealed, the inner stationary ring 230 is clamped by two protecting shells 300, and the protecting shell 220 are used for fixing the clamp plates 220, and the protecting shell 220, and the side 100 are fixed by the side.
The clamping plates 300 are two and are symmetrically located between the two fixing plates 120 by taking the shaft rod 110 as a center, the lug plates 310 are installed on symmetrical side walls of the clamping plates 300, the threaded holes 320 are formed in the side wall of one lug plate 310, the threaded rods 140 rotate to penetrate through the threaded holes 320, the guide holes 330 are formed in the side wall of the other lug plate 310, the guide rods 150 penetrate through the guide holes 330, the anti-slip pads 340 are installed on the inner walls of the clamping plates 300, the threaded rods 140 are driven to rotate clockwise by the aid of the rotating knobs 130, the clamping plates 300 are driven to move towards the shaft rod 110 by means of the lead screw structure, the two clamping plates 300 are mutually close to each other and clamp the side wall of the protective shell 220, the anti-slip pads 340 can increase friction force between the clamping plates 300 and the protective shell 220, the mechanical seal assembly 200 is fixedly installed, when the mechanical seal assembly 200 is required to be disassembled, the rotating knobs 130 drive the threaded rods 140 to rotate anticlockwise, the limit on the protective shell 220 can be relieved by pushing the two clamping plates 300 to be separated from the shaft rod 110 by the lead screw structure.
The limiting assembly 400 comprises a limiting shell 410 arranged on the side wall of the fixed plate 120, a sliding groove 420 arranged on the side wall of the limiting shell 410, a sliding block 430 arranged in the sliding groove 420, a second spring 440 arranged at the bottom of the sliding block 430 and a clamping groove 450 arranged at the top of the sliding block 430 and matched with the knob 130, a circle of dense clamping teeth are arranged on the outer wall of the knob 130, a circle of tooth grooves matched with the clamping teeth are arranged on the inner wall of the clamping groove 450, the sliding block 430 slides in the sliding groove 420 and presses the second spring 440, the knob 130 is separated from the inner part of the knob 350, at the moment, the knob 130 can drive the threaded rod 140 to rotate, the position of the clamping plate 300 is adjusted, after the position of the clamping plate 300 is adjusted, the sliding block 430 is released, the second spring 440 rebounds to push the sliding block 430 to move towards the direction of the knob 130 until the knob 130 is abutted to the inner wall of the clamping groove 450, and the clamping teeth on the surface of the knob 130 are meshed with the tooth grooves on the inner wall of the clamping groove 450, and the rotation direction of the knob 130 is limited.
Although the utility model has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the features of the disclosed embodiments may be combined with each other in any manner as long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of omitting the descriptions and saving resources. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (6)
1. A mechanical seal for an electric submersible pump, comprising:
the electric pump comprises an electric pump shell (100), wherein a shaft lever (110) is arranged on the side wall of the electric pump shell (100), two fixing plates (120) are symmetrically arranged on the side wall of the electric pump shell (100) by taking the shaft lever (110) as a center, a knob (130) is rotatably connected to the side wall of one fixing plate (120), a threaded rod (140) is arranged on the side wall of the knob (130), and the threaded rod (140) penetrates through and stretches into the space between the two fixing plates (120);
the mechanical seal assembly (200) is sleeved on the shaft rod body of the shaft rod (110) and is abutted with the side wall of the electric pump shell (100);
the clamping plates (300) are arranged in two, the clamping plates (300) are symmetrically arranged between the two fixing plates (120) by taking the shaft rod (110) as a center, the lug plates (310) are arranged on the symmetrical side walls of the clamping plates (300), threaded holes (320) are formed in one side wall of one lug plate (310), and the threaded rods (140) penetrate through the threaded holes (320) in a rotating mode.
2. The mechanical seal device for an electric submersible pump according to claim 1, wherein the mechanical seal assembly (200) comprises a stationary ring fixing seat (210) abutted against a side wall of the electric pump housing (100), a protective shell (220) mounted on the side wall of the stationary ring fixing seat (210), a stationary ring (230) abutted against the side wall of the stationary ring fixing seat (210) and positioned in the protective shell (220), a movable ring (240) coaxially connected with the stationary ring (230), a connecting piece (250) mounted on the side wall of the movable ring (240) and a first spring (260) mounted on the side wall of the connecting piece (250).
3. A mechanical seal for an electric submersible pump according to claim 2, characterized in that a guide bar (150) is also mounted between the two fixing plates (120).
4. A mechanical seal for an electric submersible pump according to claim 3, wherein the other of the side walls of the ear plates (310) is provided with a guide hole (330), and the guide rod (150) penetrates the guide hole (330).
5. The mechanical seal device for an electric submersible pump according to claim 4, wherein the inner wall of the clamping plate (300) is provided with an anti-slip pad (340).
6. The mechanical seal device for an electric submersible pump according to claim 5, further comprising a limit assembly (400), wherein the limit assembly (400) comprises a limit housing (410) mounted on the side wall of the fixed plate (120), a sliding groove (420) formed on the side wall of the limit housing (410), a sliding block (430) located in the sliding groove (420), a second spring (440) mounted at the bottom of the sliding block (430), and a clamping groove (450) formed on the top of the sliding block (430) and matched with the knob (130).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321999731.2U CN220227300U (en) | 2023-07-27 | 2023-07-27 | Mechanical sealing device for submersible electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321999731.2U CN220227300U (en) | 2023-07-27 | 2023-07-27 | Mechanical sealing device for submersible electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220227300U true CN220227300U (en) | 2023-12-22 |
Family
ID=89197375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321999731.2U Active CN220227300U (en) | 2023-07-27 | 2023-07-27 | Mechanical sealing device for submersible electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220227300U (en) |
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2023
- 2023-07-27 CN CN202321999731.2U patent/CN220227300U/en active Active
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