CN215633950U - Sealing structure and horizontal pump - Google Patents
Sealing structure and horizontal pump Download PDFInfo
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- CN215633950U CN215633950U CN202121315655.XU CN202121315655U CN215633950U CN 215633950 U CN215633950 U CN 215633950U CN 202121315655 U CN202121315655 U CN 202121315655U CN 215633950 U CN215633950 U CN 215633950U
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- pump
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Abstract
The utility model relates to the technical field of horizontal pumps, in particular to a sealing structure and a horizontal pump. The sealing structure comprises a sealing gland, a pump shaft and a sealing cover, wherein the sealing gland is provided with a through hole for the pump shaft to pass through, and the end surface of the sealing gland is provided with an annular groove; the movable ring grinding set is positioned in the annular groove; the spring seat is used for being fixedly connected with the pump shaft, and the spring seat and the sealing gland are coaxial and are arranged in a clearance mode; the quiet ring subassembly is installed in the spring holder, and the one end of keeping away from the spring holder of quiet ring subassembly and the terminal surface that the rotating ring ground the group and laminate mutually, and quiet ring subassembly can grind the axis rotation of group around the pump shaft for the rotating ring. When needing to overhaul, only need dismantle gland, can accomplish the change that the rotating ring ground group and quiet ring subassembly, convenient and fast.
Description
Technical Field
The utility model relates to the technical field of horizontal pumps, in particular to a sealing structure and a horizontal pump.
Background
Horizontal pump adopts mechanical seal among the thermal power plant, and mechanical seal direct mount is on the pump shaft, and mechanical seal is installed from medium side to atmosphere side promptly, needs to increase simultaneously sealed the pad and seals. After the equipment runs for a long time, the mechanical seal moving ring and the static ring are abraded, and the mechanical seal water leakage phenomenon is easy to occur, so that the running of the equipment is influenced. Frequent maintenance is required, and the mechanical seal moving ring is replaced in time. And the mechanical seal is inconvenient to install and disassemble, parts outside the pump shaft need to be firstly disassembled in the daily maintenance process, and then the mechanical seal is replaced, so that the maintenance time is longer.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a sealing structure and a horizontal pump, which are used for solving the technical problems that in the prior art, a mechanical seal is directly arranged on a pump shaft, and the mechanical seal is inconvenient to install and disassemble and inconvenient to maintain.
In view of the above object, the present invention provides a sealing structure comprising:
the pump comprises a sealing gland, a pump body and a pump cover, wherein the sealing gland is provided with a through hole for a pump shaft to pass through, and the end surface of the sealing gland is provided with an annular groove;
the movable ring grinding set is positioned inside the annular groove;
the spring seat is used for being fixedly connected with the pump shaft, and the spring seat and the sealing gland are coaxial and are arranged in a clearance mode; and
the static ring assembly is installed in the spring seat, the static ring assembly is far away from one end of the spring seat and the end face of the rotating ring grinding group are attached to each other, and the static ring assembly can rotate around the axis of the pump shaft relative to the rotating ring grinding group.
Further, in certain alternative embodiments, the stationary ring assembly includes an alloy ring and an elastic member;
the spring holder is tubulose, the inner wall of spring holder is provided with the depressed part, the elastic component is located the inside of depressed part, the one end of alloy ring compresses tightly on the elastic component, the terminal surface of the other end of alloy ring with the terminal surface that the rotating ring ground the group is laminated mutually.
Further, in certain alternative embodiments, the stationary ring assembly further comprises a washer positioned between the spring and the alloy ring.
Further, in certain optional embodiments, an annular sealing groove is formed in an inner annular surface of one end, close to the gasket, of the alloy ring, and a sealing ring is arranged inside the annular sealing groove and abuts against the gasket.
Further, in some optional embodiments, the elastic member is a spring or a compression spring.
Further, in certain alternative embodiments, the seal structure further comprises a fastener;
the spring seat is provided with a mounting hole, and the fastener passes through the mounting hole and is connected with the pump shaft.
Further, in certain alternative embodiments, the fasteners are bolts.
Further, in some optional embodiments, the dynamic ring grinding set is a sealing strip, and the length of the sealing strip is equal to that of the annular groove.
Further, in some optional embodiments, the cross section of the sealing strip is rectangular, the sealing strip has a first side surface and a second side surface which are arranged oppositely, the first side surface is abutted with the groove bottom of the annular groove, and the distance between the second side surface and the first side surface is larger than the depth of the annular groove.
Based on the above purpose, the utility model also provides a horizontal pump, which comprises the sealing structure.
Compared with the prior art, the utility model has the following beneficial effects:
the present invention provides a sealing structure, including:
the pump comprises a sealing gland, a pump body and a pump cover, wherein the sealing gland is provided with a through hole for a pump shaft to pass through, and the end surface of the sealing gland is provided with an annular groove;
the movable ring grinding set is positioned inside the annular groove;
the spring seat is used for being fixedly connected with the pump shaft, and the spring seat and the sealing gland are coaxial and are arranged in a clearance mode; and
the static ring assembly is installed in the spring seat, the static ring assembly is far away from one end of the spring seat and the end face of the rotating ring grinding group are attached to each other, and the static ring assembly can rotate around the axis of the pump shaft relative to the rotating ring grinding group.
Based on the structure, the sealing structure provided by the utility model has the advantages that the movable ring grinding group is arranged in the annular groove of the sealing gland, the static ring assembly is arranged in the spring seat, the pump shaft penetrates through the through hole of the sealing gland when in use, then the sealing gland is fixed on the pump body, when the pump shaft rotates, the movable ring grinding group and the sealing gland are fixed, the static ring assembly and the spring seat rotate along with the pump shaft, and at the moment, the static ring assembly rotates around the axis of the pump shaft relative to the movable ring grinding group, so that the dynamic sealing is realized. When needing to overhaul, only need dismantle gland, can accomplish the change that the rotating ring ground group and quiet ring subassembly, convenient and fast.
The horizontal pump provided by the utility model is convenient to overhaul due to the adoption of the sealing structure provided by the utility model.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a sealing structure provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a horizontal pump according to an embodiment of the present invention.
Icon: 1-sealing gland; 2-a pump shaft; 3-moving ring grinding group; 4-alloy ring; 5-spring seats; 6-shaft sleeve; 7-a pump body; 8-an elastic member; 9-a gasket; 10-a sealing ring; 11-mounting holes; 12-boss.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 and 2, the present embodiment provides a sealing structure including:
the pump comprises a sealing gland 1, wherein the sealing gland 1 is provided with a through hole for a pump shaft 2 to pass through, and the end surface of the sealing gland 1 is provided with an annular groove;
the dynamic ring grinding group 3 is positioned in the annular groove;
the spring seat 5 is fixedly connected with the pump shaft 2, and the spring seat 5 is coaxial with the sealing gland 1 and is arranged in a clearance manner; and
the quiet ring subassembly, quiet ring unit mount is in spring holder 5, and the one end of keeping away from spring holder 5 of quiet ring subassembly is laminated mutually with the terminal surface that the rotating ring ground group 3, and quiet ring subassembly can grind the axis rotation of group 3 around pump shaft 2 for the rotating ring.
Based on this structure, the seal structure that this embodiment provided, grind group 3 with the rotating ring and set up in gland 1's ring channel, install quiet ring subassembly in spring holder 5, when using, pass gland 1's through-hole with pump shaft 2, then fix gland 1 on the pump body 7, when pump shaft 2 rotates, rotating ring grinds group 3 and gland 1 and is fixed motionless, quiet ring subassembly and spring holder 5 rotate along with pump shaft 2, at this moment, quiet ring subassembly grinds group 3 for the rotating ring and rotates around the axis of pump shaft 2, realize the dynamic seal. When needing to overhaul, only need dismantle gland 1, can accomplish the change that the rotating ring ground group 3 and quiet ring subassembly, convenient and fast.
In this embodiment, the seal structure further comprises a fastener; the spring seat 5 is provided with a mounting hole 11, the mounting hole 11 extends along the radial direction of the spring seat 5, and the fastener penetrates through the mounting hole 11 to be connected with the pump shaft 2.
The outer part of the pump shaft 2 is fixedly sleeved with a shaft sleeve 6, and a fastener penetrates through the mounting hole 11 to be fixedly connected with the shaft sleeve 6.
Optionally, the fastener is a bolt.
Further, in certain alternative embodiments, the stationary ring assembly includes an alloy ring 4 and an elastic member 8; spring holder 5 is the tubulose, and the inner wall of spring holder 5 is provided with the depressed part, and elastic component 8 is located the inside of depressed part, and the one end of alloy ring 4 compresses tightly on elastic component 8, and the terminal surface of the other end of alloy ring 4 is laminated mutually with the terminal surface that the rotating ring ground group 3.
By providing the elastic member 8, the elastic member 8 is in a pre-compressed state and has a certain elastic force against the movable ring grinding set 3 when initially used. When the moving ring grinding set 3 and the alloy ring 4 generate certain friction loss, the alloy ring 4 can be pushed by the elasticity of the elastic piece 8 to compensate, and the service lives of the moving ring grinding set 3 and the alloy ring 4 are prolonged.
In this embodiment, the recess is an annular groove. The original length of the elastic member 8 before being compressed is greater than the depth of the annular groove.
The elastic piece 8 is an elastic piece which is annular and is positioned in the annular groove.
It should be noted that the elastic member 8 in the present embodiment may be a compression spring.
In certain alternative embodiments, the inner annular surface of the alloy ring 4 near one end of the gasket 9 is provided with an annular sealing groove, a sealing ring 10 is arranged inside the annular sealing groove, and the sealing ring 10 abuts against the gasket 9.
By providing the seal ring 10, the seal between the alloy ring 4 and the sleeve 6 can be achieved.
In some alternative embodiments, the stationary ring assembly further comprises a washer 9, the washer 9 being located between the spring 8 and the alloy ring 4.
By arranging the gasket 9, the direct contact between the seal ring 10 and the elastic member 8 can be avoided, so that the seal ring 10 is prevented from losing the sealing effect due to the extrusion deformation of the elastic member 8.
The inner surface of spring seat 5 is provided with a boss 12 and gasket 9 is located on the top of boss 12.
In this embodiment, a ring surface of one side of the gasket 9 abuts against the seal ring 10, a ring surface of the other side of the gasket 9 abuts against a table surface of the boss 12, and meanwhile, the gasket 9 presses the elastic member 8, so that the elastic member 8 is elastically deformed and is in a pre-compression state.
Optionally, the material of the gasket 9 is metal.
Further, in some alternative embodiments, the moving ring grinding set 3 is a sealing strip, and the length of the sealing strip is equal to that of the annular groove.
Optionally, the sealing strip in this embodiment is a sealing strip sealed at a single end face, and is made of a polymer material.
Further, in some alternative embodiments, the sealing strip has a rectangular cross-section, the sealing strip has a first side surface and a second side surface which are oppositely arranged, the first side surface is abutted with the groove bottom of the annular groove, and the distance between the second side surface and the first side surface is larger than the depth of the annular groove.
The distance between the second side surface and the first side surface is greater than the depth of the annular groove, and the second side surface can be ensured to be positioned outside the annular groove, so that the alloy ring 4 is in contact with the second side surface, and the alloy ring 4 is prevented from being directly contacted with the end surface of the sealing gland 1.
The embodiment also provides a horizontal pump which comprises the sealing structure provided by the embodiment.
The horizontal pump provided by the embodiment is convenient to overhaul due to the sealing structure provided by the embodiment.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A sealing structure, comprising:
the pump comprises a sealing gland, a pump body and a pump cover, wherein the sealing gland is provided with a through hole for a pump shaft to pass through, and the end surface of the sealing gland is provided with an annular groove;
the movable ring grinding set is positioned inside the annular groove;
the spring seat is used for being fixedly connected with the pump shaft, and the spring seat and the sealing gland are coaxial and are arranged in a clearance mode; and
the static ring assembly is installed in the spring seat, the static ring assembly is far away from one end of the spring seat and the end face of the rotating ring grinding group are attached to each other, and the static ring assembly can rotate around the axis of the pump shaft relative to the rotating ring grinding group.
2. The seal structure of claim 1, wherein the stationary ring assembly includes an alloy ring and an elastomeric member;
the spring holder is tubulose, the inner wall of spring holder is provided with the depressed part, the elastic component is located the inside of depressed part, the one end of alloy ring compresses tightly on the elastic component, the terminal surface of the other end of alloy ring with the terminal surface that the rotating ring ground the group is laminated mutually.
3. The seal structure of claim 2, wherein the stationary ring assembly further comprises a gasket positioned between the spring and the alloy ring.
4. The sealing structure according to claim 3, wherein an annular sealing groove is formed in an inner annular surface of one end, close to the gasket, of the alloy ring, and a sealing ring is arranged inside the annular sealing groove and abuts against the gasket.
5. The sealing structure of claim 3, wherein the resilient member is a leaf spring or a compression spring.
6. The seal structure of any one of claims 1 to 5, further comprising a fastener;
the spring seat is provided with a mounting hole, and the fastener passes through the mounting hole and is connected with the pump shaft.
7. The seal structure of claim 6, wherein the fastener is a bolt.
8. The seal structure of any one of claims 1 to 5, wherein the dynamic ring grinding set is a seal strip having a length equal to a length of the annular groove.
9. The seal of claim 8, wherein the seal strip has a rectangular cross-section, the seal strip having first and second oppositely disposed sides, the first side abutting a bottom of the annular groove, and the second side being spaced from the first side by a distance greater than the depth of the annular groove.
10. A horizontal pump comprising a seal structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121315655.XU CN215633950U (en) | 2021-06-11 | 2021-06-11 | Sealing structure and horizontal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121315655.XU CN215633950U (en) | 2021-06-11 | 2021-06-11 | Sealing structure and horizontal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215633950U true CN215633950U (en) | 2022-01-25 |
Family
ID=79942921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121315655.XU Active CN215633950U (en) | 2021-06-11 | 2021-06-11 | Sealing structure and horizontal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215633950U (en) |
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2021
- 2021-06-11 CN CN202121315655.XU patent/CN215633950U/en active Active
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