CN219755400U - Anti-blocking V-shaped ball valve - Google Patents
Anti-blocking V-shaped ball valve Download PDFInfo
- Publication number
- CN219755400U CN219755400U CN202321004530.4U CN202321004530U CN219755400U CN 219755400 U CN219755400 U CN 219755400U CN 202321004530 U CN202321004530 U CN 202321004530U CN 219755400 U CN219755400 U CN 219755400U
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- Prior art keywords
- valve
- ball
- valve seat
- seat
- valve body
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- 239000012530 fluid Substances 0.000 claims abstract description 17
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 10
- 239000010439 graphite Substances 0.000 claims abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims abstract 3
- 238000007789 sealing Methods 0.000 claims description 16
- 210000004907 gland Anatomy 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000007790 scraping Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 4
- 238000012856 packing Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 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
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model discloses an anti-blocking V-shaped ball valve, which comprises a valve body, a valve seat arranged in the valve body, a valve ball arranged in the valve body and the valve seat, an upper valve rod arranged above the valve ball and a lower valve rod arranged below the valve ball and penetrating through the valve body, wherein a corresponding fluid channel is formed in the valve seat for fluid to pass through; a scraper with a sharp edge extends from the valve seat to the center line direction of the valve ball; a ring groove communicated with the valve seat is formed in the outer side of the valve body; in the annular groove, hugs closely disk seat outwards has set gradually disk seat clamping ring, belleville spring and long tail formula cap the disk seat with disk seat clamping ring cooperation department is provided with graphite dust collar, clears up remaining medium on the valve ball through the scraper, guarantees the seal of valve through disk seat clamping ring and belleville spring, through setting up graphite dust collar, guarantees belleville spring's normal work.
Description
Technical Field
The utility model belongs to the technical field of valves, and particularly relates to an anti-blocking V-shaped ball valve.
Background
The V-shaped ball valve ball core has the characteristics of large circulation capacity, large adjustable range, shearing force, tight closing and the like due to the design of a throttling profile formed by the V-shaped notch, and is widely applied to petroleum pipelines, natural gas pipelines, chemical industry and other systems. Most of the existing V-shaped ball valves are installed horizontally, in the closed state of the valve, one side of the valve seat directly faces media, the media can be accumulated, the valve ball is blocked after a period of use, a certain gap exists between the valve seat and the valve body due to the spring structure, the media can enter the back of the valve seat after working for a certain period of time, and when the media is accumulated to a certain thickness between the valve seat and the valve body, the spring is disabled, so that the valve seat is blocked.
Disclosure of Invention
The utility model discloses an anti-blocking V-shaped ball valve, which aims to overcome the defect that the valve ball and a valve seat are easy to block after the existing V-shaped ball valve is used for a period of time.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an anti-sticking hinders V type ball valve, includes the valve body, sets up in the inside disk seat of valve body, sets up in the inside valve ball of valve body and disk seat, passes the valve body and sets up the upper valve rod in the valve ball top to and pass the lower valve rod of valve body setting in the valve ball below, corresponding fluid passage has been seted up in the inside of valve seat for fluid to pass through, wherein:
a scraper with a sharp edge extends from the valve seat to the direction of the centerline of the valve ball near the sealing surface of the valve seat and the valve ball; a ring groove communicated with the valve seat is formed in the outer side of the valve body around the fluid channel inlet, and an internal thread is formed in the outer side of the ring groove; the valve seat pressing ring, the disc spring and the long tail type union cap are sequentially arranged in the annular groove and clung to the valve seat outwards, the long tail type union cap is screwed into the annular groove to enable the valve seat pressing ring and the disc spring to be in compression fit with the valve seat, and a graphite dust-blocking ring is arranged at the matching position of the valve seat and the valve seat pressing ring.
Further, the shape of the edge of the scraper is a sphere which is attached to the outer surface of the valve ball and is used for scraping the adhered medium on the valve ball.
Further, O-shaped rings are respectively arranged between the valve body and the valve seat and between the long tail type union cap and the valve seat pressing ring.
Further, involute grooves are formed in the upper portion and the lower portion of the valve ball, and involute internal threads are arranged in the involute grooves.
Further, involute external threads are arranged at the positions where the upper valve rod and the lower valve rod are connected with the valve ball.
Further, a stuffing box for sealing is sleeved outside the upper valve rod, stuffing is filled in the stuffing box, and a stuffing gland is arranged above the stuffing box and used for compressing the stuffing in the stuffing box.
Further, the upper end of the upper valve rod is provided with a bracket for limiting the upper valve rod.
Further, a connecting sleeve is arranged at the top end of the bracket and used for being connected with a driving device to control the switch of the fluid channel. Compared with the prior art, the beneficial effects of adopting the technical scheme are as follows: (1) A scraper is added near the sealing position of the valve seat and the valve ball, so that the valve has self-cleaning capability and the occurrence of blocking of the valve ball is prevented. (2) The disc spring is additionally arranged on the back of the valve seat, the O-shaped ring is adopted for sealing, the floating valve seat is sealed when reverse pressure is realized, the sealing effect is improved, and the frequency of valve disassembly and maintenance is reduced. (3) A graphite dust-blocking ring is additionally arranged between the valve seat and the valve seat pressing ring, so that dust is prevented from entering a spring working area to cause the valve seat to lose floating quantity, and blocking occurs. (4) The upper valve rod, the lower valve rod and the valve ball are connected by adopting asymptotes, so that the transmission torque is large, the matching performance is good, and the situation that the circle centers of the valve rod and the ball body are not in the same straight line due to clearance fit can be avoided.
Drawings
FIG. 1 is a half cross-sectional view of the overall structure of the anti-seize V-ball valve of the present utility model.
Fig. 2 is an enlarged view of the anti-seize V-ball valve of the present utility model at a in fig. 1.
Description of the figure:
1-valve body, 2-valve seat, 3-valve ball, 4-upper valve rod, 5-lower valve rod, 7-stuffing box, 9-stuffing gland, 10-bracket, 11-connecting sleeve, 12-O-shaped ring, 13-graphite dust-proof ring, 14-belleville spring, 15-long tail cap, 16-scraper and 17-valve seat pressing ring.
Detailed Description
The technical scheme of the utility model is clearly and completely described in the following by specific embodiments with reference to the accompanying drawings. It should be understood that the described embodiments are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.
As shown in fig. 1, the anti-seize V-shaped ball valve of the present utility model comprises a valve body 1, a valve seat 2 provided inside the valve body 1, a valve ball 3 provided inside the valve body 1 and the valve seat 2, an upper valve stem 4 provided above the valve ball 3 through the valve body 1, and a lower valve stem 5 provided below the valve ball 3 through the valve body 1;
the valve body 1 and the valve seat 2 are provided with corresponding fluid channels for fluid to pass through, and when the upper valve rod 4 and the lower valve rod 5 rotate, the valve ball 3 can be linked to rotate, so that the fluid channels are opened or closed.
The packing box 7 for sealing is sleeved outside the upper valve rod 4, packing is filled in the packing box 7, and a packing gland 9 is arranged above the packing box 7 and used for compressing the packing in the packing box 7;
the upper end of the upper valve rod 4 is provided with a bracket 10 for limiting the upper valve rod 4, and the top end of the bracket 10 is provided with a connecting sleeve 11 for connecting with a driving device (not shown in the figure) so as to drive the upper valve rod 4 and the lower valve rod 5 to rotate through the driving device, thereby driving the valve ball 3 to rotate and controlling the opening and closing of the fluid channel.
A scraper 16 with a sharp edge extends from the valve seat 2 to the direction of the central line of the valve ball 3 near the sealing surface of the valve seat 2 and the valve ball 3, and the edge shape of the scraper 16 is a sphere shape attached to the outer surface of the valve ball 3, so that the adhered medium on the valve ball 3 can be scraped off in the rotation process of the valve ball 3.
Involute grooves (not shown in the figure) are formed in the upper portion and the lower portion of the valve ball 3, involute internal threads are arranged in the involute grooves, involute external threads are arranged at the positions where the upper valve rod 4 and the lower valve rod 5 are connected with the valve ball 3, the internal threads and the external threads are matched, the matching performance is good, and the transmission torque is large.
Referring to fig. 1 and 2, a ring groove (not shown) communicated with the valve seat 2 is formed on the outer side of the valve body 1 and surrounds the inlet of the fluid channel, and an internal thread is formed on the outer side of the ring groove; a valve seat pressing ring 17, a disc spring 14 and a long tail type union cap 15 are sequentially arranged in the ring groove and clung to the valve seat 2 outwards; the long tail type cap 15 is provided with external threads, and the valve seat pressing ring 17 and the belleville spring 14 are in press fit with the valve seat 2 by screwing the long tail type cap 15 into the annular groove; o-rings 12 are respectively arranged between the valve body 1 and the valve seat 2 and between the long tail type union cap 15 and the valve seat pressing ring 17, so that floating valve seat sealing during reverse pressure is realized; a graphite dust-blocking ring 13 is arranged at the matching position of the valve seat 2 and the valve seat pressing ring 17, so that dust is prevented from entering the working area of the belleville springs 14.
When the valve ball 3 is rotated, shearing forces are necessarily generated in pairs on two sections of the valve ball 3 and the valve seat 2, and the directions of the shearing forces simultaneously point to or deviate from intersecting lines of the two sides, so that fibers and solid matters attached to the sealing surfaces of the valve ball 3 and the valve seat 2 can be cut off; a scraper 16 is added near the sealing position of the valve seat 2 and the valve ball 3, when the valve ball 3 rotates in daily life, the edge of the scraper 16 is attached to the outer surface of the valve ball 3, dirt on the valve ball 3 is scraped off, and the sealing performance is ensured while the blocking of the valve ball is prevented; the disc spring 14 and the valve seat pressing ring 17 are additionally arranged on the back of the valve seat 2 for sealing, when fluid pressure acts on the valve seat 2, the disc spring 14 is compressed and applies a reaction force to the valve seat pressing ring 17, so that the valve seat pressing ring 17 is pressed on the valve seat, and the sealing effect is improved; a graphite dust-blocking ring 13 is additionally arranged between the tail part of the long tail type cap 15 and the valve seat pressing ring 17, and the graphite has higher deformation coefficient and enough chemical stability, so that the graphite can generate better sealing effect when acid, alkali or high-temperature medium passes through, and the valve seat is prevented from being blocked; the upper valve rod 4, the lower valve rod 5 and the valve ball 3 are connected by adopting asymptotes, and when fluid generates floating pressure, the transmission direction of the pressure is always along the tangential direction of the matching surface, so that the matching is ensured to be stable.
Although the utility model has been described in detail with reference to the preferred embodiments, the embodiments are not intended to limit the utility model, but any modifications, equivalents, improvements and modifications within the spirit and principles of the utility model will occur to those skilled in the art.
Claims (8)
1. The anti-blocking V-shaped ball valve comprises a valve body, a valve seat arranged in the valve body, a valve ball arranged in the valve body and the valve seat, an upper valve rod penetrating through the valve body and arranged above the valve ball, and a lower valve rod penetrating through the valve body and arranged below the valve ball, wherein corresponding fluid channels are formed in the valve seat for fluid to pass through;
the scraper with sharp edges extends out of the valve seat towards the direction of the central line of the valve ball, near the sealing surface of the valve seat and the valve ball; a ring groove communicated with the valve seat is formed in the outer side of the valve body around the fluid channel inlet, and an internal thread is formed in the outer side of the ring groove; the valve seat pressing ring, the disc spring and the long tail type union cap are sequentially arranged in the annular groove and clung to the valve seat outwards, the long tail type union cap is screwed into the annular groove to enable the valve seat pressing ring and the disc spring to be in compression fit with the valve seat, and a graphite dust-blocking ring is arranged at the matching position of the valve seat and the valve seat pressing ring.
2. The anti-seize V-ball valve according to claim 1, wherein the shape of the edge of the scraper is a sphere which is attached to the outer surface of the valve ball, and is used for scraping off the adhered medium on the valve ball.
3. The anti-seize V-ball valve according to claim 1, wherein O-rings are provided between the valve body and the valve seat and between the long tail union cap and the valve seat pressing ring, respectively.
4. The anti-seize V-ball valve according to claim 1, wherein involute grooves are formed in both upper and lower portions of the valve ball, and involute internal threads are provided in the involute grooves.
5. The anti-seize V-ball valve of claim 4, wherein involute external threads are provided at the positions where the upper and lower valve stems are connected to the valve ball.
6. The anti-jamming V-shaped ball valve according to claim 1, wherein a stuffing box for sealing is sleeved outside the upper valve rod, stuffing is filled in the stuffing box, and a stuffing gland is arranged above the stuffing box and used for compressing the stuffing in the stuffing box.
7. The anti-seize V-ball valve according to claim 1, wherein the upper end of the upper valve rod is provided with a bracket for limiting the upper valve rod.
8. The anti-seize V-ball valve according to claim 7, wherein the top end of the support is provided with a connecting sleeve for connection with a driving device for controlling the opening and closing of the fluid passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321004530.4U CN219755400U (en) | 2023-04-27 | 2023-04-27 | Anti-blocking V-shaped ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321004530.4U CN219755400U (en) | 2023-04-27 | 2023-04-27 | Anti-blocking V-shaped ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219755400U true CN219755400U (en) | 2023-09-26 |
Family
ID=88083034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321004530.4U Active CN219755400U (en) | 2023-04-27 | 2023-04-27 | Anti-blocking V-shaped ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219755400U (en) |
-
2023
- 2023-04-27 CN CN202321004530.4U patent/CN219755400U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |