CN204755984U - Ball valve floats - Google Patents
Ball valve floats Download PDFInfo
- Publication number
- CN204755984U CN204755984U CN201520377779.9U CN201520377779U CN204755984U CN 204755984 U CN204755984 U CN 204755984U CN 201520377779 U CN201520377779 U CN 201520377779U CN 204755984 U CN204755984 U CN 204755984U
- Authority
- CN
- China
- Prior art keywords
- valve
- floating ball
- valve rod
- ball valve
- thrust washer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000007667 floating Methods 0.000 claims description 44
- 239000000945 filler Substances 0.000 claims description 27
- 238000012856 packing Methods 0.000 claims description 21
- 238000010276 construction Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 description 18
- 239000012535 impurity Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a pipeline control valve, especially a ball valve floats, including valve body, valve rod, spheroid, disk seat, the disk seat is equipped with V type groove and corner cut structure, the cross -section in V type groove is the V -arrangement, the open end in V type groove is located the excircle side of disk seat and contacts with the valve body, the corner cut structure is located the spheroidal terminal surface of keeping away from of disk seat, for the tangent plane of indent earlier on. Through the design of new valve holder structure, stem guide structure and stem seal structure, solved that ball valve floats exists in the real work spheroid is sentenced with the disk seat and the easy problem of leaking of taking place of valve rod department, improved that the ball valve floats spheroid is sentenced with the disk seat and valve rod department sealed, avoided ball valve floats leak in taking place with outer danger of leaking, guaranteed the security and the reliability of ball valve.
Description
Technology neck city
The utility model relates to a kind of pipe control valve, particularly a kind of floating ball valve.
Background technique
Flow resistance is little owing to having for ball valve, switch rapidly, good seal performance, long service life, be convenient to gas control and the feature such as automatically controlled, have wide range of applications.Floating ball valve is a class important in ball valve, have compact structure, sealing is reliable, and structure is simple, the feature such as easy to maintenance, the sealing surface formed due to spheroid and valve seat is often in closed state, is not easily damaged by medium erosion, is easy to Operation and maintenance, be applicable to the general work media such as water, solvent, acid and rock gas, but also be applicable to the severe medium of operating conditions, as oxygen, hydrogen peroxide, methane and ethene etc., be widely used in every profession and trade.
Work the ball valve kind of blocking medium in the duct a lot, have hard sealed eccentric ball valve and soft seal constant-current type ball valve, the sealing of hard sealed constant-current type ball valve is metal to metal, and after long-time use, the mutual friction of phase-contact surface meeting phase, makes to be sealed with certain leakage; The sealing of soft seal constant-current type ball valve is metal pair rubber, long-time use after phase-contact surface can not phase mutual friction, sealing can reach zero leakage.But, in prior art due to graphite packing in use for some time, if often do not tight a bolt, will leak, therefore, affect working life.
Model utility content
The purpose of this utility model is, a kind of floating ball valve is provided, for the easy problem occurring to leak existed in existing floating ball valve structure, new structural design is proposed to the valve seat construction of floating ball valve, stem guiding structure and valve rod leak-proof structure, strengthen the sealing at floating ball valve spheroid and valve seat place and the sealing at valve rod place, avoid floating ball valve and interior leakage and the danger leaked outside occurs, ensure that the safety and reliability of floating ball valve.
The floating ball valve that the utility model provides, comprise: valve body, valve rod, spheroid, valve seat, it is characterized in that, described valve seat is provided with V-type groove and corner cut structure, the cross section of described V-type groove is V-arrangement, the opening end of described V-type groove is positioned at the cylindrical side of valve seat and contacts with valve body, described corner cut structure be positioned at valve seat away from the end face of spheroid, be a tangent plane concaved.V-type groove can play the effect of unloaded, and ensure the minimal wear of valve seat and spheroid and smooth and easy action, corner cut structure can, according to the position of the change self regulating valve seat of temperature, make valve under different mixture condition, ensures that resistance is minimum.
In further technological scheme, described valve seat is also provided with lip type blade construction, and described lip type blade construction contacts with described spheroid.Lip scraper valve seat can the impurity of automated cleaning spherome surface, keeps the wear resistance of valve seat.
In further technological scheme, floating ball valve is also provided with stem guiding structure, wherein stem guiding structure comprises guide sleeve, thrust washer 1 and thrust washer 2, described guide sleeve is between valve body and valve rod, and described thrust washer 1 and thrust washer 2 are positioned at guide sleeve bottom and contact with valve rod.Thrust washer 1 and thrust washer 2 ensure the wear resistance of valve rod, avoid occurring that situation about being engaged appears in valve rod and guide sleeve.The design of stem guiding structure, adds stability and the wear resistance of valve rod, ensures the steady and smooth and easy of valve rod operation, is also conducive to the sealing of valve rod place filler simultaneously.
In further technological scheme, floating ball valve is provided with valve rod leak-proof structure, wherein, valve rod leak-proof structure comprises packing press ring, filler, lower packing press ring, described filler is between valve rod and valve body, described upper packing press ring and lower packing press ring lay respectively at top and the bottom of filler, and preferred described filler is V-type filler.The design of valve rod leak-proof structure, can ensure the sealability at valve rod place effectively, avoids the impurity in medium to infiltrate valve rod place filler, adds the life-span of the filler at valve rod place, prevent medium from leaking from valve rod, avoid the risk that valve leaks outside.
In further technological scheme, described valve rod leak-proof structure also comprises stuffing box, and described stuffing box is between valve rod and valve body.
In further technological scheme, described valve rod leak-proof structure also comprises O type circle, and affiliated valve rod is provided with groove, and described O type circle is positioned at the groove of valve rod and contacts with stuffing box.O type circle has good sealing under the operating mode of low pressure or vacuum (95%), can prevent the impurity in medium from infiltrating V-type filler, add the V-type gland sealed life-span at valve rod place, effectively can ensure the sealability at valve rod place, avoid the risk that valve leaks outside.
In further technological scheme, the material of valve seat adopts enhanced polytetrafluoroethylene.Enhanced polytetrafluoroethylene has good mechanical property and chemical property, ensures the sealability of valve seat and spheroid.
In further technological scheme, the material of thrust washer 1 and thrust washer 2 adopts high hardness wear-resisting alloy.
In further technological scheme, described valve body comprises the first valve body and the second valve body.
In further technological scheme, described first valve body and the second valve body removably connect.
The floating ball valve that the utility model provides, compared with the existing technology, for the easy problem occurring to leak existed in existing floating ball valve, strengthen the sealing at floating ball valve spheroid and valve seat place and the sealing at valve rod place, avoid floating ball valve and interior leakage and the danger leaked outside occurs, ensure that the safety and reliability of floating ball valve.
Accompanying drawing explanation
Fig. 1 is floating ball valve structural representation;
Fig. 2 is floating ball valve seat structural representation;
Fig. 3 is valve rod of floating ball valve guide structure schematic diagram;
Fig. 4 is valve rod of floating ball valve sealed structural representation.
Reference numerals list is as follows:
1, the first valve body; 2, the second valve body; 3, valve rod; 4, spheroid; 5, valve seat; 5-1, lip blade construction; 5-2, V-type groove; 5-3, corner cut structure; 5-4, end face; 6, stem guiding structure; 6-1, guide sleeve; 6-2, thrust washer 1; 6-3, thrust washer 2; 7, valve rod leak-proof structure; 7-1, upper packing press ring; 7-2, filler; 7-3, lower packing press ring; 7-4, O type circle; 8, stuffing box.
Embodiment
Be described in more detail below in conjunction with accompanying drawing 1 ~ 4 pair of model utility, the description of this part is only exemplary and explanatory, should not have any restriction in protection domain of the present utility model.
As shown in Figure 1, a kind of floating ball valve that the utility model proposes, comprising: the valve body be made up of the first valve body 1 and the second valve body 2, and they removably connect; In valve body, spheroid 4 is floating, and valve rod 3 drives spheroid 4 to complete switch motion.Under valve-closed state, produce certain displacement at pressure medium effect lower sphere 4 and be pressed on the valve seat 5 of outlet end, forming ball face sealing; Stem guiding structure 6 keeps the stability of valve rod 3, in stuffing box 8, filler is housed, and valve rod leak-proof structure 7 ensures the sealing at valve rod 3 place, avoids medium to leak from valve rod 3.
As shown in Figure 1, a kind of floating ball valve that the utility model proposes is provided with the valve seat 5 of new structure.As shown in Figure 2, valve seat construction have employed lip blade construction 5-1, V-type groove 5-2 and corner cut structure 5-3, the cross section of described V-type groove is V-arrangement, the opening end of described V-type groove is positioned at the cylindrical side of valve seat 5 and contacts with valve body, described corner cut structure be positioned at valve seat 5 away from the end face 5-4 of spheroid 4, be a tangent plane concaved; Wherein, lip type blade construction 5-1 can the impurity of automated cleaning spherome surface, keeps the wear resistance of valve seat 5; V-type groove 5-2 can play the effect of unloaded, ensures the minimal wear of valve seat 5 and spheroid 4 and smooth and easy action; Corner cut structure 5-3 can, according to the position of the change self regulating valve seat 5 of temperature, make valve under different mixture condition, ensures that resistance is minimum.The material of valve seat 5 adopts enhanced polytetrafluoroethylene, and it has good mechanical property and chemical property, ensures the sealability of valve seat 5 and spheroid 4.
As shown in Figure 1, a kind of floating ball valve that the utility model proposes is provided with stem guiding structure 6.As shown in Figure 3, stem guiding structure 6 comprises guide sleeve 6-1, thrust washer 1 (6-2) and thrust washer 2 (6-3), described guide sleeve 6-1 is between valve body and valve rod 3, and described thrust washer 1 (6-2) and thrust washer 2 (6-3) are positioned at guide sleeve 6-1 bottom and contact with valve rod 3; Thrust washer 1 (6-2) and thrust washer 2 (6-3) adopt high hardness wear-resisting alloy material; Guide sleeve 6-1 ensure that the stability of valve rod 3, thrust washer 1 (6-2) and thrust washer 2 (6-3) ensure the wear resistance of valve rod 3, avoid occurring that situation about being engaged appears in valve rod 3 and guide sleeve 6-1, ensure that valve rod 3 operates steady and smooth and easy, be also conducive to the sealing of valve rod 3 place filler simultaneously.
As shown in Figure 1, a kind of floating ball valve that the utility model proposes is provided with valve rod leak-proof structure 7.As shown in Figure 4, valve rod leak-proof structure 7 comprises packing press ring 7-1, V-type filler 7-2, lower packing press ring 7-3, described filler 7-2 is between valve rod 3 and valve body, and described upper packing press ring 7-1 and lower packing press ring 7-3 lays respectively at top and the bottom of filler 7-2.In a kind of specific embodiments, described valve rod leak-proof structure 7 also comprises stuffing box 8, and described stuffing box 8 is between valve rod 3 and valve body.In another particular embodiment, described valve rod leak-proof structure 7 also comprises O type circle 7-4, and described valve rod 3 is provided with groove, and described O type circle 7-4 is positioned at the groove of valve rod 3 and contacts with stuffing box 8.Wherein, upper packing press ring 7-1, V-type filler 7-2 and lower packing press ring 7-3 can ensure the sealability at valve rod 3 place effectively, avoid medium to leak from valve rod 3; Simultaneously, O type circle 7-4 has good sealing under the operating mode of low pressure or vacuum (95%), can prevent the impurity in medium from infiltrating V-type filler 7-2, the life-span that the V-type filler 7-2 adding valve rod 3 place seals, effectively can ensure the sealability at valve rod place, avoid the risk that valve leaks outside.
The utility model have employed new valve seat construction, stem guiding structure and valve rod leak-proof structure, have the following advantages: seat material have employed enhanced polytetrafluoroethylene, valve seat construction have employed lip blade construction, V-type groove and corner cut structure, wherein, lip type blade construction can the impurity of automated cleaning spherome surface, keeps the wear resistance of valve seat; V-type groove can play the effect of unloaded, ensures the minimal wear of valve seat and spheroid and smooth and easy action; Corner cut structure can, according to the position of the change self regulating valve seat of temperature, make valve under different mixture condition, ensures that resistance is minimum.Stem guiding structure comprises guide sleeve, thrust washer 1 and thrust washer 2, thrust washer 1 and thrust washer 2 adopt high hardness wear-resisting alloy material, guide sleeve ensure that the stability of valve rod, thrust washer 1 and thrust washer 2 ensure the wear resistance of valve rod, avoid occurring that situation about being engaged appears in valve rod and guide sleeve, ensure the steady and smooth and easy of valve rod operation, be also conducive to the sealing of valve rod place filler simultaneously.Valve rod leak-proof structure comprises packing press ring, V-type filler, lower packing press ring and O type circle, upper packing press ring, V-type filler and lower packing press ring can ensure the sealability at valve rod place effectively, medium is avoided to leak from valve rod, simultaneously, O type circle has good sealing under the operating mode of low pressure or vacuum (95%), can prevent the impurity in medium from infiltrating V-type filler, add the V-type gland sealed life-span at valve rod place, effectively can ensure the sealability at valve rod place, avoid the risk that valve leaks outside.Structural design new is above all for the easy problem occurring to leak existed in existing floating ball valve, strengthen the sealing at floating ball valve spheroid and valve seat place and valve rod place, avoid floating ball valve to leak outside and the danger of interior leakage, ensure that the safety and reliability of floating ball valve.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (11)
1. a floating ball valve, comprise: valve body, valve rod (3), spheroid (4), valve seat (5), it is characterized in that, described valve seat (5) is provided with V-type groove (5-2) and corner cut structure (5-3), the cross section of described V-type groove is V-arrangement, the opening end of described V-type groove is positioned at the cylindrical side of valve seat (5) and contacts with valve body, described corner cut structure is positioned on the end face away from spheroid (4) (5-4) of valve seat (5), is a tangent plane concaved.
2. floating ball valve according to claim 1, is characterized in that, described valve seat (5) is also provided with lip type blade construction (5-1), and described lip type blade construction (5-1) contacts with described spheroid (4).
3. floating ball valve according to claim 1, it is characterized in that, described floating ball valve is provided with stem guiding structure (6), wherein said stem guiding structure (6) comprises guide sleeve (6-1), thrust washer 1 (6-2) and thrust washer 2 (6-3), described guide sleeve (6-1) is positioned between valve body and valve rod (3), and described thrust washer 1 (6-2) and thrust washer 2 (6-3) are positioned at guide sleeve (6-1) bottom and contact with valve rod (3).
4. floating ball valve according to claim 2, it is characterized in that, described floating ball valve is provided with stem guiding structure (6), wherein said stem guiding structure (6) comprises guide sleeve (6-1), thrust washer 1 (6-2) and thrust washer 2 (6-3), described guide sleeve (6-1) is positioned between valve body and valve rod (3), and described thrust washer 1 (6-2) and thrust washer 2 (6-3) are positioned at guide sleeve (6-1) bottom and contact with valve rod (3).
5. the floating ball valve according to any one of claim 1-4, it is characterized in that, described floating ball valve is provided with valve rod leak-proof structure (7), wherein, described valve rod leak-proof structure (7) comprises packing press ring (7-1), filler (7-2), lower packing press ring (7-3), described filler (7-2) is positioned between valve rod (3) and valve body, and described upper packing press ring (7-1) and lower packing press ring (7-3) lay respectively at top and the bottom of filler (7-2).
6. floating ball valve according to claim 5, is characterized in that, described filler (7-2) is V-type filler.
7. floating ball valve according to claim 5, is characterized in that, described valve rod leak-proof structure (7) also comprises stuffing box (8), and described stuffing box (8) is positioned between valve rod (3) and valve body.
8. floating ball valve according to claim 7, it is characterized in that, described valve rod leak-proof structure (7) also comprises O type circle (7-4), described valve rod (3) is provided with groove, and described O type circle (7-4) is positioned at the groove of valve rod (3) and contacts with stuffing box (8).
9. floating ball valve according to claim 1 and 2, is characterized in that, the material of valve seat (5) adopts enhanced polytetrafluoroethylene.
10. the floating ball valve according to claim 3 or 4, is characterized in that, the material of thrust washer 1 (6-1) and thrust washer 2 (6-2) adopts high hardness wear-resisting alloy.
11. floating ball valves according to claim 1, is characterized in that, described valve body (1) comprises the first valve body (1) and the second valve body (2); Preferably, described first valve body (1) and the second valve body (2) removably connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520377779.9U CN204755984U (en) | 2015-06-03 | 2015-06-03 | Ball valve floats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520377779.9U CN204755984U (en) | 2015-06-03 | 2015-06-03 | Ball valve floats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204755984U true CN204755984U (en) | 2015-11-11 |
Family
ID=54470691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520377779.9U Active CN204755984U (en) | 2015-06-03 | 2015-06-03 | Ball valve floats |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204755984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879520A (en) * | 2015-06-03 | 2015-09-02 | 航天长征化学工程股份有限公司 | Floating ball valve |
-
2015
- 2015-06-03 CN CN201520377779.9U patent/CN204755984U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879520A (en) * | 2015-06-03 | 2015-09-02 | 航天长征化学工程股份有限公司 | Floating ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |