CN204025719U - Changable type valve seat construction - Google Patents
Changable type valve seat construction Download PDFInfo
- Publication number
- CN204025719U CN204025719U CN201420451945.0U CN201420451945U CN204025719U CN 204025719 U CN204025719 U CN 204025719U CN 201420451945 U CN201420451945 U CN 201420451945U CN 204025719 U CN204025719 U CN 204025719U
- Authority
- CN
- China
- Prior art keywords
- valve seat
- changable type
- tapered channel
- spool
- described valve
- 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.)
- Expired - Fee Related
Links
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a kind of Changable type valve seat construction, comprise valve seat and valve body, described valve seat is arranged in the passage of valve body, described valve seat is the cylindrical body that inside is provided with tapered channel, the outer surface of described valve seat is provided with outside thread, the upper end open place of the tapered channel of described valve seat is provided with interior hexagonal groove, is provided with the pedestal coordinated with described valve seat in described valve body, and the inwall of described pedestal is provided with the internal thread mated with described outside thread.It is simple that the utility model aims to provide a kind of installing/dismounting, and valve opening closing process is stablized, the stable Changable type valve seat construction of Flow-rate adjustment.
Description
Technical field
The utility model relates to valve design and manufacture field, particularly a kind of Changable type valve seat construction.
Background technique
Valve seat is detachable face component in valve, and for supporting spool closed positions, and form sealing pair, valve seat is arranged on the pedestal of valve body, coordinates form sealing pair with spool.General valve-seat diameter is valve maximum flow diameter.Such as the valve seat material of butterfly valve widely, all kinds of rubber, plastics, metallic material all can be used as valve seat material, such as: EPDM, NBR, NR, PTFE, PEEK, PFA, SS315, STELLITE etc.
The open-shut device of stop valve (stop valve, Globe Valve) is the flap of stopper, and in plane or the extra large conical surface above sealing, flap is along the center line moving linearly of valve seat.The forms of motion of valve rod, (adopted name: dark bar), also has lifting rotation rod-type to can be used for controlling the flowing of all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.Therefore, such stop valve valve that dams is suitable as and cuts off or regulate and throttling use very much.Valve rod due to such valve open or shutoff stroke relatively short, and there is cutting function very reliably, again due to the change of valve seat port and the stroke direct proportionality of flap, be very suitable for the adjustment to flow.
Find in actual use, stop valve is in unholiness medium or use rear valve base to wear and tear for a long time, and valve can leak, and under normal circumstances because the valve seat of stop valve is changed complicated, installation difficulty is large, and whole stop valve can be changed by engineer.
Model utility content
It is simple that the purpose of this utility model is to provide a kind of installing/dismounting, and valve opening closing process is stablized, the stable Changable type valve seat construction of Flow-rate adjustment.
The technological scheme that the utility model provides is: a kind of Changable type valve seat construction, comprise valve seat and valve body, described valve seat is arranged in the passage of valve body, described valve seat is the cylindrical body that inside is provided with tapered channel, the outer surface of described valve seat is provided with outside thread, the upper end open place of the tapered channel of described valve seat is provided with interior hexagonal groove, is provided with the pedestal coordinated with described valve seat in described valve body, and the inwall of described pedestal is provided with the internal thread mated with described outside thread.
In above-mentioned Changable type valve seat construction, the bottom surface of described valve seat and the position of base into contact are provided with the first seal ring.
In above-mentioned Changable type valve seat construction, described tapered channel base area and the ratio of top surface area are 1:14 ~ 16.
In above-mentioned Changable type valve seat construction, also comprise spool, described spool is the taper coordinated with described tapered channel, the top of described spool is provided with a boss, described boss is circular, be inscribed within described interior hexagonal groove, the position that described boss contacts with interior hexagonal groove is provided with the second seal ring.
The utility model Changable type valve seat construction, exactly interior hexagonal groove is set on the top of valve seat specifically, be fastened on valve body by the outer hexagonal spanner of coupling, and the compact siro spinning technology of seal ring guarantee and valve body is set, be connected with valve body particularly by bolt, it is connected firmly, valve seat will be caused to be shifted because of the motion of spool, the appearance of the problems such as distortion, the stop valve of the flowing medium of high pressure-temperature is applicable to due to the utility model, therefore the ratio of tapered channel base area and top surface area is set to 1:14 ~ 16, improve the stability that fluid controls, when hydrodynamic pressure is 40 ~ 80MPa, when the ratio of base area and top surface area is 1:15, when blocking fluid, resistance significantly reduces, valve seat is tight with contacting of spool, operator are firmly little when being elevated spool, good sealing effect.
Further, the spool supporting with this valve seat has the boss being inscribed within interior hexagonal groove, when spool and valve seat closely cooperate, is aided with the second seal ring seal simultaneously, and rigid seal and soft sealing improve sealing effect.
Accompanying drawing explanation
Sectional view when Fig. 1 is the valve seat 1 of specific embodiment of the utility model 1, valve body 2 and spool 6 coordinate;
Fig. 2 is the valve seat 1 of specific embodiment of the utility model 1, sectional view when valve body 2 coordinates;
Fig. 3 is the plan view of the valve seat 1 of specific embodiment of the utility model 1;
Fig. 4 is the plan view of the valve seat 1 of specific embodiment of the utility model 1.
Embodiment
Below in conjunction with embodiment, the technical solution of the utility model is described in further detail, but does not form any restriction of the present utility model.
As depicted in figs. 1 and 2, a kind of Changable type valve seat construction, comprise valve seat 1, valve body 2 and spool 6, described valve seat 1 is arranged in the passage of valve body 2, described valve seat 1 is the inner cylindrical body being provided with tapered channel 3, as shown in Figure 3, the outer surface of described valve seat 1 is provided with outside thread, as shown in Figure 4, the upper end open place of the tapered channel 3 of described valve seat 1 is provided with interior hexagonal groove 4, the pedestal 21 coordinated with described valve seat 1 is provided with in described valve body 2, the inwall of described pedestal 21 is provided with the internal thread mated with described outside thread, the position that the bottom surface of described valve seat 1 contacts with pedestal 21 is provided with the first seal ring 5, described tapered channel 3 base area and the ratio of top surface area are 1:14 ~ 16.Described spool 6 is the taper coordinated with described tapered channel, the top of described spool 6 is provided with a boss 61, described boss 61 is circular, and be inscribed within described interior hexagonal groove 4, the position that described boss 61 contacts with interior hexagonal groove 4 is provided with the second seal ring 62
In actual applications, by the outer hexagonal spanner of coupling, valve seat 1 is fastened on valve body 2, and the compact siro spinning technology of seal ring 5 guarantee and valve body 1 is set, be connected with valve body 2 particularly by screw thread, it is connected firmly, valve seat 1 will be caused to be shifted because of the motion of spool 6, the appearance of the problems such as distortion, the shape of its spool 6 and the form fit of tapered channel, the stop valve of the flowing medium of high pressure-temperature is applicable to due to the utility model, therefore the ratio of tapered channel 3 base area and top surface area is set to 1:14 ~ 16, improve the stability that fluid controls, when hydrodynamic pressure is 40 ~ 80MPa, when the ratio of base area and top surface area is 1:15, when blocking fluid, resistance significantly reduces, valve seat is tight with contacting of spool, operator are firmly little when being elevated spool, good sealing effect.Meanwhile, supporting spool 6 is provided with the round boss 61 being inscribed within interior hexagonal groove 4, and is that the position that interior hexagonal groove 4 contacts arranges seal ring, and rigid seal and soft seal combine and improve sealing effect.
When valve seat 1 weares and teares, can easily be unloaded by outer hexagonal spanner, the valve seat more renewed.
Above-describedly be only preferred embodiment of the present utility model, all do in spirit of the present utility model and spirit any amendment, equivalently to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a Changable type valve seat construction, comprise valve seat and valve body, described valve seat is arranged in the passage of valve body, it is characterized in that, described valve seat is the cylindrical body that inside is provided with tapered channel, and the outer surface of described valve seat is provided with outside thread, and the upper end open place of the tapered channel of described valve seat is provided with interior hexagonal groove, be provided with the pedestal coordinated with described valve seat in described valve body, the inwall of described pedestal is provided with the internal thread mated with described outside thread.
2. Changable type valve seat construction according to claim 1, is characterized in that, the bottom surface of described valve seat and the position of base into contact are provided with the first seal ring.
3. Changable type valve seat construction according to claim 1, is characterized in that, described tapered channel base area and the ratio of top surface area are 1:14 ~ 16.
4. Changable type valve seat construction according to claim 1, it is characterized in that, also comprise spool, described spool is the taper coordinated with tapered channel, the top of described spool is provided with a boss, described boss is circular, and be inscribed within described interior hexagonal groove, the position that described boss contacts with interior hexagonal groove is provided with the second seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420451945.0U CN204025719U (en) | 2014-08-11 | 2014-08-11 | Changable type valve seat construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420451945.0U CN204025719U (en) | 2014-08-11 | 2014-08-11 | Changable type valve seat construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204025719U true CN204025719U (en) | 2014-12-17 |
Family
ID=52065587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420451945.0U Expired - Fee Related CN204025719U (en) | 2014-08-11 | 2014-08-11 | Changable type valve seat construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204025719U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299241A (en) * | 2015-10-26 | 2016-02-03 | 佳马机械涂覆科技（苏州）有限公司 | Air quantity adjusting mechanism |
| CN105605239A (en) * | 2015-11-05 | 2016-05-25 | 福建华永科技有限公司 | Circular truncated cone-shaped valve core, circular truncated cone-shaped valve and machining method of circular truncated cone-shaped valve core |
| CN111043366A (en) * | 2019-11-27 | 2020-04-21 | 闽南理工学院 | Safety overpressure protection valve for pipeline system |
-
2014
- 2014-08-11 CN CN201420451945.0U patent/CN204025719U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299241A (en) * | 2015-10-26 | 2016-02-03 | 佳马机械涂覆科技（苏州）有限公司 | Air quantity adjusting mechanism |
| CN105299241B (en) * | 2015-10-26 | 2017-10-10 | 金辉 | A kind of air quantity adjusting mechanism |
| CN105605239A (en) * | 2015-11-05 | 2016-05-25 | 福建华永科技有限公司 | Circular truncated cone-shaped valve core, circular truncated cone-shaped valve and machining method of circular truncated cone-shaped valve core |
| CN111043366A (en) * | 2019-11-27 | 2020-04-21 | 闽南理工学院 | Safety overpressure protection valve for pipeline system |
| CN111043366B (en) * | 2019-11-27 | 2024-09-20 | 闽南理工学院 | Safety overpressure protection valve for pipeline system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204025719U (en) | Changable type valve seat construction | |
| CN204628570U (en) | Multi-layer sealed Multifunctional stop valve | |
| CN104405895A (en) | Novel stop valve | |
| CN204677160U (en) | The adjustable Angle Throttle Valves of a kind of gas production wellhead | |
| CN204493747U (en) | A kind of bidirectional sealed butterfly valve | |
| CN205371655U (en) | Ultra -low temperature butterfly valve | |
| CN205896214U (en) | Stop valve with pressure release function | |
| CN206274086U (en) | A kind of air operated reversing valve | |
| CN104265909A (en) | Novel needle type stop valve | |
| CN104565458A (en) | Spherical non-rising-stem stop check valve | |
| CN204114163U (en) | A kind of Novel needle shutoff valve | |
| CN204061959U (en) | Rolling type leakproof cock with fluoride lining | |
| CN204004537U (en) | Lubricating type stopcock | |
| CN207848450U (en) | A kind of shutoff type valve | |
| CN203488723U (en) | Fluid stop valve | |
| CN207454802U (en) | A kind of inside screw nonrising stem type gate valve for improving sealing performance | |
| CN207131887U (en) | A kind of butterfly valve with ventilation function | |
| CN204372191U (en) | A kind of novel cutoff valve | |
| CN204061962U (en) | A kind of ball valve of improvement | |
| CN206274080U (en) | A kind of novel cutoff valve | |
| CN204878772U (en) | It is two -way from pressure -bearing butterfly valve | |
| CN203176376U (en) | Multi-level sealing stop valve | |
| CN204387416U (en) | The dark bar screw down nonreturn valve of sphere | |
| CN205001648U (en) | Valve bonnet and valve stem sealing structure | |
| CN204755936U (en) | Small dimension stop valve for refrigerating plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20170811 |