CN210317884U - Fluoroplastic centrifugal pump structure with integrated mechanical sealing device - Google Patents
Fluoroplastic centrifugal pump structure with integrated mechanical sealing device Download PDFInfo
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- CN210317884U CN210317884U CN201921037877.2U CN201921037877U CN210317884U CN 210317884 U CN210317884 U CN 210317884U CN 201921037877 U CN201921037877 U CN 201921037877U CN 210317884 U CN210317884 U CN 210317884U
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Abstract
The utility model discloses a fluoroplastic centrifugal pump structure with cartridge mechanical seal device aims at solving fluoroplastic centrifugal pump mechanical seal subassembly assembly and assembles inconveniently, has the not enough of leakage risk. The utility model comprises a mechanical seal seat component, an axle sleeve and a mechanical seal component, wherein the mechanical seal component is arranged between the mechanical seal seat component and the axle sleeve, the mechanical seal component comprises a movable ring seat, a front movable ring and a rear movable ring, the movable ring seat is tightly connected with the axle sleeve, the front end and the rear end of the movable ring seat are respectively provided with an annular groove, the front movable ring and the rear movable ring are respectively arranged in the two annular grooves, a seal ring is respectively arranged between the front movable ring, the rear movable ring and the axle sleeve, and a butt spring is arranged between the front movable ring and the rear movable ring on the movable ring seat; the inner wall of the front part of the mechanical seal seat component is tightly provided with a front static ring, the inner wall of the rear part of the mechanical seal seat component is tightly provided with a rear static ring, the front end face of the front dynamic ring is tightly attached to the rear end face of the front static ring, and the rear end face of the rear dynamic ring is tightly attached to the front end face of the rear static ring.
Description
Technical Field
The utility model relates to a centrifugal pump, more specifically say, it relates to a fluoroplastics centrifugal pump structure of belt collection dress formula mechanical seal device.
Background
At present, mechanical seals for fluoroplastic centrifugal pumps are mostly installed by adopting parts, and the requirements on assembly personnel are high; the part in contact with the medium is made of metal materials, so that the corrosion resistance is limited; partial mechanical seal adopts split type axle sleeve of pottery and metal in order to solve the corrosion-resistant problem of material, but has increased the point of leaking, has increased the leakage risk.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes fluoroplastics centrifugal pump mechanical seal subassembly assembles inconveniently, has the not enough of leakage risk, provides a fluoroplastics centrifugal pump structure of belt collection dress formula mechanical seal device, and its mechanical seal device adopts collection dress formula to arrange, has reduced the assembly degree of difficulty, and leakproofness and corrosion resisting property are good.
In order to solve the technical problem, the utility model discloses a following technical scheme: a fluoroplastic centrifugal pump structure with a cartridge mechanical sealing device comprises a mechanical seal seat component, a shaft sleeve and a mechanical seal component, wherein the mechanical seal component is arranged between the mechanical seal seat component and the shaft sleeve; the inner wall of the front part of the mechanical seal seat component is tightly provided with a front static ring, the inner wall of the rear part of the mechanical seal seat component is tightly provided with a rear static ring, the front end face of the front dynamic ring is tightly attached to the rear end face of the front static ring, and the rear end face of the rear dynamic ring is tightly attached to the front end face of the rear static ring.
Mechanical seal subassembly and axle sleeve, preceding quiet ring, back quiet ring, the cooperation of mechanical seal seat subassembly form seal structure, prevent the leakage of medium, and the back that the mechanical seal seat subassembly was put in place, mechanical seal's butt spring just assembles to put in place, need not to adjust mechanical seal subassembly's butt spring's compressive capacity again, has overcome mechanical seal subassembly because of the high requirement to the assembler of assembly precision, and simple installation avoids the not enough leakage that causes of assembler experience. The integral type axle sleeve has reduced the leakage point for the split type axle sleeve of pottery and metal, has reduced the risk that the medium leaked. Realize sealed through the sealing washer between mechanical seal subassembly and the axle sleeve, the sealed laminating of the preceding terminal surface of rotating ring in the middle of the axle sleeve rotation process is sealed in the front on quiet ring rear end face, the sealed laminating of back rotating ring rear end face is sealed and is realized sealed on the terminal surface before the quiet ring of back, and the leakproofness is good. And water is introduced into the cooling cavity through the water through holes for cooling, so that the cooling effect is good. The mechanical sealing device of the fluoroplastic centrifugal pump structure with the integrated mechanical sealing device is arranged in an integrated manner, so that the assembly difficulty is reduced, and the sealing performance is good.
Preferably, the machine seal seat assembly comprises a front static ring seat, a water jacket and a rear static ring seat which are sequentially connected together, and seal seat sealing rings are arranged between the front static ring seat and the water jacket and between the water jacket and the rear static ring seat. The machine seal seat component formed by connecting the front static ring seat, the water jacket and the rear static ring seat is convenient to assemble and good in sealing performance after connection.
Preferably, a front convex ring is arranged on the inner wall of the front part of the front static ring seat, a front shaft shoulder is arranged on the outer wall of the front static ring, a front sealing ring is arranged between the rear side surface of the front convex ring and the front side surface of the front shaft shoulder, and an anti-rotation pin is connected between the front static ring seat and the front static ring. The inner wall of the rear part of the rear static ring seat is provided with a rear convex ring, the outer wall of the rear static ring is provided with a rear shaft shoulder, a rear sealing ring is arranged between the front side surface of the rear convex ring and the rear side surface of the rear shaft shoulder, and an anti-rotation bolt is connected between the rear static ring seat and the rear static ring. The structure is arranged to carry out good axial limiting on the front side and the rear side of the mechanical seal assembly, and axial movement of the front rotating ring and the rear rotating ring is prevented.
Preferably, the front end face and the inner wall of the front static ring seat are both lined with an anticorrosive coating. The corrosion resistance of the centrifugal pump is improved by the arrangement of the anticorrosive coating.
Preferably, the movable ring seat is provided with a plurality of mounting holes arranged axially, the abutting springs are mounted in the mounting holes, the spring ring seats are mounted in the two ring grooves, and two ends of each abutting spring abut against the two spring ring seats respectively. The acting force of the abutting spring on the front movable ring and the rear movable ring is balanced.
As preferred, all lining has anticorrosive lining from the driven ring seat hookup location to the axle sleeve front end on the axle sleeve outer wall, is equipped with the terminal surface lining on the preceding terminal surface of axle sleeve, installs O type circle on the terminal surface lining. The arrangement of the anti-corrosion lining and the end face lining improves the anti-corrosion performance of the centrifugal pump.
Preferably, the front stationary ring, the front rotating ring and the rear rotating ring are all made of silicon carbide, and the rear stationary ring is made of graphite. The silicon carbide material is wear-resistant, high-temperature resistant and corrosion-resistant. The graphite material has lubricity, high temperature resistance and corrosion resistance.
Compared with the prior art, the beneficial effects of the utility model are that: the mechanical sealing device of the fluoroplastic centrifugal pump structure with the integrated mechanical sealing device is arranged in an integrated manner, so that the assembly difficulty is reduced, and the sealing performance and the corrosion resistance are good.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1. shaft sleeve, 2, cooling cavity, 3, water through hole, 4, moving ring seat, 5, front moving ring, 6, rear moving ring, 7, ring groove, 8, sealing ring, 9, abutting spring, 10, front stationary ring, 11, rear stationary ring, 12, front stationary ring seat, 13, water jacket, 14, rear stationary ring seat, 15, machine seal seat sealing ring, 16, front convex ring, 17, front shaft shoulder, 18, front sealing ring, 19, anti-rotation pin, 20, rear convex ring, 21, rear shaft shoulder, 22, rear sealing ring, 23, anti-rotation bolt, 24, anticorrosive coating, 25, mounting hole, 26, spring ring seat, 27, anticorrosive coating, 28, end surface coating, 29, O-shaped ring.
Detailed Description
The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:
example (b): a fluoroplastic centrifugal pump structure with a cartridge mechanical seal device (see attached figure 1) comprises a mechanical seal seat component, a shaft sleeve 1 and a mechanical seal component, wherein the mechanical seal component is arranged between the mechanical seal seat component and the shaft sleeve, a cooling cavity 2 is formed in a gap between the inner wall of the mechanical seal seat component and the outer wall of the mechanical seal component, a water through hole 3 communicated with the cooling cavity is formed in the mechanical seal seat component, the mechanical seal component comprises a movable ring seat 4, a front movable ring 5 and a rear movable ring 6, the movable ring seat is fixedly connected with the shaft sleeve, annular grooves 7 are formed in the front end and the rear end of the movable ring seat, the front movable ring and the rear movable ring are respectively arranged in the two annular grooves, seal rings 8 are respectively arranged between the front movable ring, the rear movable ring and the shaft sleeve, and a butt spring 9 is arranged between the front movable ring and; the inner wall of the front part of the mechanical seal seat component is tightly provided with a front static ring 10, the inner wall of the rear part of the mechanical seal seat component is tightly provided with a rear static ring 11, the front end face of the front dynamic ring is tightly attached to the rear end face of the front static ring, and the rear end face of the rear dynamic ring is tightly attached to the front end face of the rear static ring. The mechanical seal seat component comprises a front static ring seat 12, a water jacket 13 and a rear static ring seat 14 which are sequentially connected together, and the front static ring seat, the water jacket and the rear static ring seat are fastened and connected together through bolts. Sealing seat sealing rings 15 are arranged between the front static ring seat and the water jacket and between the water jacket and the rear static ring seat. The front inner wall of the front static ring seat is provided with a front convex ring 16, the outer wall of the front static ring is provided with a front shaft shoulder 17, a front sealing ring 18 is arranged between the rear side surface of the front convex ring and the front side surface of the front shaft shoulder, and an anti-rotation pin 19 is connected between the front static ring seat and the front static ring. And a rear convex ring 20 is arranged on the inner wall of the rear part of the rear static ring seat, a rear shaft shoulder 21 is arranged on the outer wall of the rear static ring, a rear sealing ring 22 is arranged between the front side surface of the rear convex ring and the rear side surface of the rear shaft shoulder, and an anti-rotation bolt 23 is connected between the rear static ring seat and the rear static ring. The front end face and the inner wall of the front static ring seat are both lined with an anticorrosive coating 24. The movable ring seat is provided with a plurality of mounting holes 25 which are axially arranged, the abutting springs are mounted in the mounting holes, the spring ring seats 26 are mounted in the two ring grooves, two ends of each abutting spring are respectively abutted on the two spring ring seats, and the two spring ring seats are respectively abutted on the front movable ring and the rear movable ring. An anti-corrosion lining layer 27 is lined from the connecting position of the driven ring seat on the outer wall of the shaft sleeve to the front end of the shaft sleeve, an end surface lining layer 28 is arranged on the front end surface of the shaft sleeve, and an O-shaped ring 29 is arranged on the end surface lining layer. The front static ring, the front rotating ring and the rear rotating ring are all made of silicon carbide, and the rear static ring is made of graphite.
Mechanical seal subassembly and axle sleeve, preceding quiet ring, back quiet ring, the cooperation of mechanical seal seat subassembly form seal structure, prevent the leakage of medium, and the back that the mechanical seal seat subassembly was put in place, mechanical seal's butt spring just assembles to put in place, need not to adjust mechanical seal subassembly's butt spring's compressive capacity again, has overcome mechanical seal subassembly because of the high requirement to the assembler of assembly precision, and simple installation avoids the not enough leakage that causes of assembler experience. The integral type axle sleeve has reduced the leakage point for the split type axle sleeve of pottery and metal, has reduced the risk that the medium leaked. Realize sealed through the sealing washer between mechanical seal subassembly and the axle sleeve, the sealed laminating of the preceding terminal surface of rotating ring in the middle of the axle sleeve rotation process is sealed in the front on quiet ring rear end face, the sealed laminating of back rotating ring rear end face is sealed and is realized sealed on the terminal surface before the quiet ring of back, and the leakproofness is good. And water is introduced into the cooling cavity through the water through holes for cooling, so that the cooling effect is good. The mechanical sealing device of the fluoroplastic centrifugal pump structure with the integrated mechanical sealing device is arranged in an integrated manner, so that the assembly difficulty is reduced, and the sealing performance is good.
The above-described embodiments are merely preferred and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A fluoroplastic centrifugal pump structure with a cartridge mechanical sealing device is characterized by comprising a mechanical seal seat assembly, a shaft sleeve and a mechanical seal assembly, wherein the mechanical seal assembly is arranged between the mechanical seal seat assembly and the shaft sleeve; the inner wall of the front part of the mechanical seal seat component is tightly provided with a front static ring, the inner wall of the rear part of the mechanical seal seat component is tightly provided with a rear static ring, the front end face of the front dynamic ring is tightly attached to the rear end face of the front static ring, and the rear end face of the rear dynamic ring is tightly attached to the front end face of the rear static ring.
2. A fluoroplastic centrifugal pump structure with a cartridge mechanical seal device according to claim 1, wherein the mechanical seal seat assembly comprises a front stationary ring seat, a water jacket and a rear stationary ring seat which are sequentially connected together, and seal seat sealing rings are respectively arranged between the front stationary ring seat and the water jacket and between the water jacket and the rear stationary ring seat.
3. A fluoroplastic centrifugal pump structure with a container type mechanical sealing device according to claim 2, wherein a front convex ring is arranged on the inner wall of the front part of the front static ring seat, a front shaft shoulder is arranged on the outer wall of the front static ring, a front sealing ring is arranged between the rear side surface of the front convex ring and the front side surface of the front shaft shoulder, and an anti-rotation pin is connected between the front static ring seat and the front static ring.
4. The fluoroplastic centrifugal pump structure with a container type mechanical sealing device according to claim 2, wherein a rear convex ring is arranged on the inner wall of the rear portion of the rear stationary ring seat, a rear shaft shoulder is arranged on the outer wall of the rear stationary ring, a rear sealing ring is arranged between the front side surface of the rear convex ring and the rear side surface of the rear shaft shoulder, and an anti-rotation bolt is connected between the rear stationary ring seat and the rear stationary ring.
5. A fluoroplastic centrifugal pump structure with a cartridge mechanical seal device according to claim 2, wherein the front end face and the inner wall of the front stationary ring seat are lined with an anticorrosive coating.
6. A fluoroplastic centrifugal pump structure with a container type mechanical sealing device according to claim 1, wherein the movable ring seat is provided with a plurality of axially arranged mounting holes, the abutting springs are mounted in the mounting holes, the spring ring seats are mounted in the two ring grooves, and two ends of the abutting springs abut against the two spring ring seats respectively.
7. A fluoroplastic centrifugal pump structure with a cartridge mechanical seal device according to any one of claims 1 to 6, wherein the outer wall of the shaft sleeve is lined with an anti-corrosion lining from the connecting position of the driven ring seat to the front end of the shaft sleeve, the front end face of the shaft sleeve is provided with an end face lining, and the end face lining is provided with an O-ring.
8. A fluoroplastic centrifugal pump structure with integrated mechanical seal device according to any one of claims 1 to 6, wherein the front stationary ring, the front rotating ring and the rear rotating ring are made of silicon carbide, and the rear stationary ring is made of graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921037877.2U CN210317884U (en) | 2019-07-04 | 2019-07-04 | Fluoroplastic centrifugal pump structure with integrated mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921037877.2U CN210317884U (en) | 2019-07-04 | 2019-07-04 | Fluoroplastic centrifugal pump structure with integrated mechanical sealing device |
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| Publication Number | Publication Date |
|---|---|
| CN210317884U true CN210317884U (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921037877.2U Active CN210317884U (en) | 2019-07-04 | 2019-07-04 | Fluoroplastic centrifugal pump structure with integrated mechanical sealing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536239A (en) * | 2020-04-21 | 2020-08-14 | 嘉兴博格曼密封件有限责任公司嘉善金刚分公司 | Integrated mechanical seal connecting assembly |
| CN113864227A (en) * | 2021-10-20 | 2021-12-31 | 安徽银龙泵阀股份有限公司 | Fluoroplastic pump sealing device |
-
2019
- 2019-07-04 CN CN201921037877.2U patent/CN210317884U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536239A (en) * | 2020-04-21 | 2020-08-14 | 嘉兴博格曼密封件有限责任公司嘉善金刚分公司 | Integrated mechanical seal connecting assembly |
| CN113864227A (en) * | 2021-10-20 | 2021-12-31 | 安徽银龙泵阀股份有限公司 | Fluoroplastic pump sealing device |
| CN113864227B (en) * | 2021-10-20 | 2023-11-17 | 安徽银龙泵阀股份有限公司 | Fluoroplastic pump sealing device |
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