CN204164412U - Dual-soft seal ball valve - Google Patents
Dual-soft seal ball valve Download PDFInfo
- Publication number
- CN204164412U CN204164412U CN201420602493.1U CN201420602493U CN204164412U CN 204164412 U CN204164412 U CN 204164412U CN 201420602493 U CN201420602493 U CN 201420602493U CN 204164412 U CN204164412 U CN 204164412U
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- valve
- seal
- triangle
- circle
- spheroid
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Abstract
The utility model relates to a kind of Dual-soft seal ball valve, comprise valve body, valve seat, spheroid, valve rod, gland, transmission device, valve rod lower end is fixedly connected with spheroid, upper end is connected with transmission device through gland, transmission device is fixedly mounted in gland upper-end surface, valve seat is arranged in the import and export passage of valve body, valve seat is provided with the soft seal circle cooperatively interacted with ball seal face, mainly soft seal circle is made up of sealed nylon circle and triangle ptfe plastic seal ring, sealed nylon circle and ball seal face arc surface fitted seal, a drift angle of triangle ptfe plastic seal ring contacts with ball seal face and forms linear sealing, sealed nylon circle is positioned at inside triangle ptfe plastic seal ring.During low pressure, the sealing of triangle ptfe plastic encloses main seal effect, and during high pressure, two seal rings seal simultaneously, has advantages such as using pressure is high, good seal performance.Be applicable to the dangerous mixture condition that high sealing requires.
Description
Technical field
The utility model belongs to valve field, specifically about a kind of soft sealing ball valve.The utility model is applicable to the dangerous mixture condition that high sealing requires.
Background technique
Soft sealing ball valve comprises valve body, valve seat, spheroid, valve rod, gland, transmission device, valve body generally adopts two-part or three stage structure, valve rod is fitted in valve body by gland, its lower end is fixedly connected with spheroid, upper end is connected with transmission device through gland, and in transmission device fixed installation gland upper-end surface, valve seat is arranged in the import and export passage of valve body, valve seat is installed a soft seal circle cooperatively interacted with ball seal face, and soft seal circle generally adopts nylon or ptfe plastic material.Its major defect is that nylon material hardness is high, and bearing capacity is better, but elasticity is bad, low pressure seal poor performance; Ptfe plastic material has good elasticity and sealability, but bearing capacity is poor, can only be used in low pressure operating mode.
Summary of the invention
The purpose of this utility model is the shortcoming existed for prior art, provides a kind of and uses that pressure range is large, the Dual-soft seal ball valve of good seal performance.
The technical solution of the utility model comprises valve body, valve seat, spheroid, valve rod, gland, transmission device, valve rod lower end is fixedly connected with spheroid, upper end is connected with transmission device through gland, transmission device is fixedly mounted in gland upper-end surface, valve seat is arranged in the import and export passage of valve body, valve seat is provided with the soft seal circle cooperatively interacted with ball seal face; Mainly soft seal circle is made up of sealed nylon circle and triangle ptfe plastic seal ring, sealed nylon circle and ball seal face arc surface fitted seal, a drift angle of triangle ptfe plastic seal ring contacts with ball seal face and forms linear sealing, and sealed nylon circle is positioned at inside triangle ptfe plastic seal ring; Valve seat between sealed nylon circle and triangle ptfe plastic seal ring is shaped with greasing groove, automatic greasing device is provided with in greasing groove, this automatic greasing device is made up of the pressure transducer be arranged in greasing groove and grease pouring valve, the outlet end of grease pouring valve is communicated with greasing groove, the import of grease pouring valve and greasing delivery side of pump channel connection, the testing signal of pressure transducer is connected in the power control circuit of grease pouring valve and greasing pump.
The utility model advantage is compared with prior art on valve seat, be provided with the face sealing and linear sealing double sealing structure that are made up of sealed nylon circle and triangle ptfe plastic seal ring, during low pressure, the sealing of triangle ptfe plastic encloses main seal effect, and during high pressure, two seal rings seal simultaneously.Be both, when valve seat is close and occur between spheroid leaking, pressure transducer detects leakage signal, opens greasing pump and grease pouring valve to greasing in greasing groove, realizes greasing sealing between spheroid and valve seat.It uses, and pressure range is large, good seal performance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Valve body, 7 trim rings, 8 triangle ptfe plastic seal rings, 9 sealed nylon circles, 10 seal rings, 11 valve seats, 12 right valve barrels, 13 pressure transducers in 1 left valve barrel, 2 grease pouring valves, 3 spheroids, 4 valve rods, 5 glands, 6.
Embodiment
Dual-soft seal ball valve as shown in Figure 1, comprise valve body, valve seat 11, spheroid 3, valve rod 4, gland 5, transmission device, valve rod 4 lower end is fixedly connected with spheroid 3, upper end is connected with transmission device through gland 5, transmission device is fixedly mounted in gland 5 upper-end surface, valve seat 11 is arranged in the import and export passage of valve body, valve seat 11 is provided with the soft seal circle cooperatively interacted with spheroid 2 sealing surface, soft seal circle is made up of sealed nylon circle 9 and triangle ptfe plastic seal ring 8, sealed nylon circle 9 and spheroid 3 sealing surface arc surface fitted seal, triangle ptfe plastic seal ring 8 is arranged on valve seat 11 by trim ring 7, a drift angle of triangle ptfe plastic seal ring 8 contacts with spheroid 3 sealing surface and forms linear sealing, sealed nylon circle 9 is positioned at inside triangle ptfe plastic seal ring 8, namely the diameter of sealed nylon circle 9 is less than the diameter of triangle ptfe plastic seal ring 8, utilize the hardness that sealed nylon circle 9 is higher, elevated pressures medium is sealed, utilize the good elasticity of triangle ptfe plastic seal ring 8 and linear sealing structure, low-pressure medium is sealed, good sealability is realized to high-pressure medium and low-pressure medium simultaneously, valve seat 11 between sealed nylon circle 9 and triangle ptfe plastic seal ring 8 is shaped with greasing groove, automatic greasing device is provided with in greasing groove, this automatic greasing device is made up of the pressure transducer 13 be arranged in greasing groove and grease pouring valve 2, the outlet end of grease pouring valve 2 is communicated with greasing groove, the entrance point of grease pouring valve 2 and greasing delivery side of pump channel connection, the testing signal of pressure transducer 13 is connected in the power control circuit of grease pouring valve 2 and greasing pump, when occurring leaking between valve seat 11 and spheroid 3, pressure transducer 13 detects leakage signal, unlatching grease pouring valve 2 and greasing pump inject seal gease in greasing groove, form three seals.Valve body is made up of left valve barrel 1, middle valve body 6, right valve barrel 12, is respectively equipped with seal ring 10 between the radial periphery of valve seat 11 and left valve barrel 1, right valve barrel 12 vias inner walls.
Claims (1)
1. a Dual-soft seal ball valve, comprise valve body, valve seat (11), spheroid (3), valve rod (4), gland (5), transmission device, valve rod (4) lower end is fixedly connected with spheroid (3), upper end is connected with transmission device through gland (5), transmission device is fixedly mounted in gland (5) upper-end surface, valve seat (11) is arranged in the import and export passage of valve body, valve seat (11) is provided with the soft seal circle cooperatively interacted with spheroid (3) sealing surface, it is characterized in that soft seal circle is made up of sealed nylon circle (9) and triangle ptfe plastic seal ring (8), sealed nylon circle (9) and spheroid (3) sealing surface arc surface fitted seal, a drift angle of triangle ptfe plastic seal ring (8) contacts with spheroid (3) sealing surface and forms linear sealing, sealed nylon circle (9) is positioned at triangle ptfe plastic seal ring (8) inner side, valve seat (11) between sealed nylon circle (9) and triangle ptfe plastic seal ring (8) is shaped with greasing groove, automatic greasing device is provided with in greasing groove, this automatic greasing device is made up of the pressure transducer be arranged in greasing groove (13) and grease pouring valve (2), the outlet end of grease pouring valve (2) is communicated with greasing groove, the import of grease pouring valve (2) and greasing delivery side of pump channel connection, the testing signal of pressure transducer (13) is connected in the power control circuit of grease pouring valve (2) and greasing pump by transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420602493.1U CN204164412U (en) | 2014-10-15 | 2014-10-15 | Dual-soft seal ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420602493.1U CN204164412U (en) | 2014-10-15 | 2014-10-15 | Dual-soft seal ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204164412U true CN204164412U (en) | 2015-02-18 |
Family
ID=52538100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420602493.1U Active CN204164412U (en) | 2014-10-15 | 2014-10-15 | Dual-soft seal ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204164412U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108351039A (en) * | 2015-10-30 | 2018-07-31 | 蒂埃尔威有限公司 | Fluid machinery |
| CN112709836A (en) * | 2019-10-25 | 2021-04-27 | 迈思可工业技术(上海)有限公司 | Three-section type ball valve with soft sealing structure |
| CN116697085A (en) * | 2023-06-13 | 2023-09-05 | 五洲阀门股份有限公司 | High-tightness ball valve |
-
2014
- 2014-10-15 CN CN201420602493.1U patent/CN204164412U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108351039A (en) * | 2015-10-30 | 2018-07-31 | 蒂埃尔威有限公司 | Fluid machinery |
| CN108351039B (en) * | 2015-10-30 | 2020-07-10 | 蒂埃尔威有限公司 | Fluid machinery |
| CN112709836A (en) * | 2019-10-25 | 2021-04-27 | 迈思可工业技术(上海)有限公司 | Three-section type ball valve with soft sealing structure |
| CN116697085A (en) * | 2023-06-13 | 2023-09-05 | 五洲阀门股份有限公司 | High-tightness ball valve |
| CN116697085B (en) * | 2023-06-13 | 2024-02-27 | 五洲阀门股份有限公司 | High-tightness ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |