CN204717038U - Novel quick closing valve hard seal fixing ball valve - Google Patents
Novel quick closing valve hard seal fixing ball valve Download PDFInfo
- Publication number
- CN204717038U CN204717038U CN201520453316.6U CN201520453316U CN204717038U CN 204717038 U CN204717038 U CN 204717038U CN 201520453316 U CN201520453316 U CN 201520453316U CN 204717038 U CN204717038 U CN 204717038U
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- China
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- valve
- spheroid
- valve rod
- rod assembly
- stuffing box
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Abstract
The utility model relates to a kind of novel quick closing valve hard seal fixing ball valve, comprises valve body, valve seat, spheroid, valve rod, lower valve rod, drive unit, and valve seat adopts floating valve seat; Mainly spheroid, valve rod, lower valve rod adopt global formation, and form spheroid valve rod assembly, the milling of valve body lumen becomes flat groove, and spheroid valve rod assembly is fitted in body cavity by stuffing box, and stuffing box peripheral milling is flat to be installed with the flat slot fit of the milling of valve body lumen; Arrange between stuffing box and spheroid valve rod assembly and soak copper graphite upper bearing (metal), arrange between valve body and spheroid valve rod assembly and soak copper graphite lower bearing.Avoid spheroid, the connection error of valve rod and wearing and tearing, there is the advantages such as switching accuracy is good, sealability stable, long service life.
Description
Technical field
The utility model belongs to valve field, particularly about a kind of fixing ball valve.
Background technique
The structural type of fixing ball valve mainly contains trunnion type and supporting plate type fixing ball valve, these two kinds of structural types on spheroid and valve rod coordinate and spheroid fixing on all there is mismatch error, thus just there will be jam phenomenon when causing equipped Hydraulic actuator to need to realize snap switch, jam repeatedly will cause valve seal surface wear, affect sealability, even cause switching position inaccuracy.The defect of trunnion type fixing ball valve is that medium active force is all delivered on valve rod by valve seat spheroid, valve rod is when switch motion, not only shearing stress will be born, also to bear the flexure stress that medium active force is applied by valve seat spheroid simultaneously, greatly reduce the working life of valve rod, service time is longer, and switching accuracy is lower; Medium active force is delivered on locating stud by dunnage by supporting plate type fixing ball valve, require higher, and between upper valve rod and spheroid, rectangle groove connects to the strength of materials of locating stud, and long-time use wearing and tearing also there will be switching accuracy problem.
Summary of the invention
The purpose of this utility model is for prior art Problems existing, provides that a kind of switching accuracy is good, sealability is stablized, the novel quick closing valve hard seal fixing ball valve of long service life.
The technical solution of the utility model comprises valve body, valve seat, spheroid, valve rod, lower valve rod, drive unit, and valve seat adopts floating valve seat; Mainly spheroid, valve rod, lower valve rod adopt global formation, and form spheroid valve rod assembly, the milling of valve body lumen becomes flat groove, and spheroid valve rod assembly is fitted in body cavity by stuffing box, and stuffing box peripheral milling is flat to be installed with the flat slot fit of the milling of valve body lumen; Arrange between stuffing box and spheroid valve rod assembly and soak copper graphite upper bearing (metal), arrange between valve body and spheroid valve rod assembly and soak copper graphite lower bearing.
Preferably, drive unit adopts Hydraulic actuator, and its body is fixedly mounted in stuffing box upper-end surface, and output shaft is fixedly connected with the valve rod upper end of spheroid valve rod assembly.
Preferably, floating valve seat is made up of valve seat, adjustment circle, spring supporting circle, pushing block, fire-protection ring, fire prevention packing ring, spring, adjustment circle screw thread is arranged on valve seat periphery, spring supporting circle, pushing block, fire-protection ring, fire prevention packing ring are fitted between valve body and valve seat by adjusting circle, spring fitting is in the axle spring hole of spring supporting circle, and the two ends of spring enclose with adjustment respectively and the end face of pushing block contacts.
The utility model has the advantages that spheroid, valve rod, lower valve rod adopt global formation, spheroid valve rod assembly is arranged in valve body by stuffing box, leaching copper graphite upper bearing (metal), leaching copper graphite lower bearing, avoid spheroid, the connection error of valve rod and wearing and tearing, its switching accuracy is good, sealability is stable, long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1 right valve barrel, valve body in 2,3 leaching copper graphite lower bearings, 4 spheroid valve rod assembly parties, 5 leaching copper graphite upper bearing (metal)s, 6 stuffing boxes, 7 O RunddichtringOs, 8 flexible graphite packings, 9 Glands, 10 adjustment circles, 11 spring supporting circles, 12 pushing blocks, 13 fire-protection rings, 14 fire prevention packing rings, 15 valve seats, 16 springs, 17 left valve barrels.
Embodiment
Novel quick closing valve hard seal fixing ball valve as shown in Figure 1, comprise valve body, valve seat 15, spheroid, valve rod, lower valve rod, drive unit, valve seat 15 adopts floating valve seat; Spheroid, valve rod, lower valve rod adopt global formation, form spheroid valve rod assembly 4, the milling of valve body lumen becomes flat groove, spheroid valve rod assembly 4 is fitted in body cavity by stuffing box 6, stuffing box 6 peripheral milling is flat to be installed with the flat slot fit of the milling of valve body lumen, realize accurate location and the anti-rotation of stuffing box 6, the reaction force passed to by drive unit on stuffing box 6 is all delivered on the good valve body of intensity, thus achieves and locate the Precision switch of spheroid valve rod assembly parts 4; Arrange between stuffing box 6 and spheroid valve rod assembly 4 and soak copper graphite upper bearing (metal) 5, arrange between valve body and spheroid valve rod assembly 4 and soak copper graphite lower bearing 3, realize the accurate location to spheroid valve rod assembly parts 4, leaching copper graphite upper bearing (metal) 5 and leaching copper graphite lower bearing 3 adopt the copper powder with self-lubricating effect and graphite sintering to form, its intensity is high, self-lubricating effect good, reduce friction factor, be conducive to spheroid valve rod assembly 4 snap switch.
Drive unit adopts Hydraulic actuator, and its body is fixedly mounted in stuffing box 6 upper-end surface, and output shaft is fixedly connected with the valve rod upper end of spheroid valve rod assembly 4.
Floating valve seat is by valve seat 15, adjustment circle 10, spring supporting circle 11, pushing block 12, fire-protection ring 13, fire prevention packing ring 14, spring 16 forms, adjustment circle 10 screw thread is arranged on valve seat 15 periphery, spring supporting circle 11, pushing block 12, fire-protection ring 13, fire prevention packing ring 14 is fitted between valve body and valve seat 15 by adjustment circle 10, spring 16 is arranged in the axle spring hole of spring supporting circle 11, the two ends of spring 16 contact with the end face of adjustment circle 10 and pushing block 12 respectively, by the elastic force regulating adjustment circle 10 to adjust spring 16, realize the seal preload between adjustment valve seat 15 and spheroid.
Valve body adopts left valve barrel 17, right valve barrel 1, middle valve body 2 to form, and is provided with 0 RunddichtringO 7 and flexible graphite packing 8, and compresses installation by Gland 9 between middle valve body 2 and valve rod.
Claims (3)
1. a novel quick closing valve hard seal fixing ball valve, comprises valve body, valve seat (15), spheroid, valve rod, lower valve rod, drive unit, and valve seat (15) adopts floating valve seat; It is characterized in that spheroid, valve rod, lower valve rod adopt global formation, form spheroid valve rod assembly (4), the milling of valve body lumen becomes flat groove, spheroid valve rod assembly (4) is fitted in body cavity by stuffing box (6), and stuffing box (6) peripheral milling is flat to be installed with the flat slot fit of the milling of valve body lumen; Arrange between stuffing box (6) and spheroid valve rod assembly (4) and soak copper graphite upper bearing (metal) (5), arrange between valve body and spheroid valve rod assembly (4) and soak copper graphite lower bearing (3).
2. novel quick closing valve hard seal fixing ball valve according to claim 1, it is characterized in that drive unit adopts Hydraulic actuator, its body is fixedly mounted in stuffing box (6) upper-end surface, and output shaft is fixedly connected with the valve rod upper end of spheroid valve rod assembly (4).
3. novel quick closing valve hard seal fixing ball valve according to claim 1 and 2, it is characterized in that floating valve seat is by valve seat (15), adjustment circle (10), spring supporting circle (11), pushing block (12), fire-protection ring (13), fire prevention packing ring (14), spring (16) forms, adjustment circle (10) screw thread is arranged on valve seat (15) periphery, spring supporting circle (11), pushing block (12), fire-protection ring (13), fire prevention packing ring (14) is fitted between valve body and valve seat (15) by adjustment circle (10), spring (16) is arranged in the axle spring hole of spring supporting circle (11), the end face that (10) and pushing block (12) are enclosed with adjustment respectively in the two ends of spring (16) contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520453316.6U CN204717038U (en) | 2015-06-19 | 2015-06-19 | Novel quick closing valve hard seal fixing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520453316.6U CN204717038U (en) | 2015-06-19 | 2015-06-19 | Novel quick closing valve hard seal fixing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204717038U true CN204717038U (en) | 2015-10-21 |
Family
ID=54316037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520453316.6U Active CN204717038U (en) | 2015-06-19 | 2015-06-19 | Novel quick closing valve hard seal fixing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204717038U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333174A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Fixing ball valve |
| CN108119688A (en) * | 2017-12-26 | 2018-06-05 | 福斯流体控制（苏州）有限公司 | The harsh operating mode hard seal fixing ball valve of coal gasification |
-
2015
- 2015-06-19 CN CN201520453316.6U patent/CN204717038U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333174A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Fixing ball valve |
| CN108119688A (en) * | 2017-12-26 | 2018-06-05 | 福斯流体控制（苏州）有限公司 | The harsh operating mode hard seal fixing ball valve of coal gasification |
| CN108119688B (en) * | 2017-12-26 | 2024-01-02 | 福斯流体控制（苏州）有限公司 | Hard sealing fixed ball valve for severe coal gasification working condition |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |