CN203686209U - High-pressure balance type forged switching ball valve with self sealing of fillers - Google Patents
High-pressure balance type forged switching ball valve with self sealing of fillers Download PDFInfo
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- CN203686209U CN203686209U CN201320738936.5U CN201320738936U CN203686209U CN 203686209 U CN203686209 U CN 203686209U CN 201320738936 U CN201320738936 U CN 201320738936U CN 203686209 U CN203686209 U CN 203686209U
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- ball
- valve
- valve ball
- high pressure
- integrated type
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- 238000007789 sealing Methods 0.000 title claims abstract description 26
- 239000000945 filler Substances 0.000 title abstract description 7
- 238000005242 forging Methods 0.000 claims description 15
- 238000012856 packing Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 4
- 210000004907 gland Anatomy 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 11
- 239000010779 crude oil Substances 0.000 abstract description 5
- 238000007670 refining Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- 238000005984 hydrogenation reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004821 distillation Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 1
- 238000001833 catalytic reforming Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- -1 motor petrol Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000010010 raising Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
The utility model relates to a high-pressure balance type forged switching ball valve with self sealing of fillers, is a high-pressure ball valve which can be applied in the oil refining industry, and belongs to the field of instrument control. The high-pressure balance type forged switching ball valve comprises a middle valve body, wherein the two sides of the middle valve body are respectively connected with a side valve body by bolts; the middle valve body is provided with a valve ball installing hole; an upper cover is connected at an opening of the valve ball installing hole by bolts and is connected with a filler pressing plate by bolts. An integral type valve ball is arranged in the valve ball installing hole, the lower end of the integral type valve ball is connected with the bottom part of the middle valve body and the upper end of the integral type valve ball extends out of the upper cover. The high-pressure balance type forged switching ball valve has the advantages that safe and stable operation of the crude-oil refining device is ensured, the sealing performance is excellent, the action reliability is high and the service life is long.
Description
Technical field
The utility model relates to a kind of high pressure filling selfsealings balance swaged forging formula switching ball, is the high-pressure ball valve that can be widely used in oil refining industry, belongs to instrument control field.
Background technique
Oil is as a kind of non-renewable resources, and the supply crisis facing produces increasing impact to socioeconomic development, and the impact of this lasting aggravation constantly penetrates into everyone life.More new technology and technique, raising are one of major programme of this problem of reply at present to the utilization ratio of petroleum resources, in whole Petroleum Industry, seem particularly crucial in the crude oil refinery of leading position.Service cycle from processing method to processing device, Oil Refining Industry is just being forced to experiencing huge variation, and more advanced meticulous refinery technology has improved output and environmental protection standard, but also high temperature resistant, the high pressure ability to device and proposed harsh requirement working life.Above-mentioned variation adds that the processing request of the appearance of low-sulphur fuel standard, low grade crude oil and more bottoms need conversion, and making can resistance to 2500LB and sharply soaring with the high pressure cut-off ball valve demand of upward pressure.
First crude oil need to carry out desalting processing through desalter after being transported to oil refinery, then enter atmospheric distillation tower and carry out separated, enter respectively corresponding downstream purifier from the light oil of the different molecular weights such as naphtha out of atmospheric distillation tower, gasoline, diesel oil and heavy oil and carry out process of refinement, after a series of processing such as continuous catalytic reforming, fixed bed hydrogenation processing, fixed bed hydrogenation cracking, bubbling bed hydrocrack, finally become the end products such as motor petrol, diesel oil, aviation kerosine, pitch.In whole purifier, almost most critical processes position all needs to install the high pressure cut-off ball valve of 2500LB with upward pressure, comparatively typical in fixed bed hydrogenation processing, fixed bed hydrogenation cracking, the toolings such as bubbling bed hydrocrack, high score gas or cold high score gas and oil that actual working pressure reaches more than 20.5MPa need featuring rigid cutting-off, can not there be any interior leakage or the phenomenon that leaks outside, and valve must can be opened at any time for a long time in closed condition in the situation that in guarantee, this is the high-voltage resistance capability to valve all, sealability, Reliability of Microprocessor, very harsh requirement has been proposed working life.
In current prior art, cutting ball valve for high pressure operating mode is connected with valve ball valve rod conventionally with flat tenon, the bottom of ball be provided with driven shaft for supporting sephere, reduce the side-play amount that pressure medium causes, valve rod position adopts the packing seal structure that can repeatedly compress, and valve seat location adopts the sealing of O type circle.If using, the cutting ball valve of said structure generally there will not be obvious problem in 1500LB and the common high pressure operating mode with downforce, but under the working condition pressure more than 2500LB, but must bear following risk: first valve ball can be pushed to a side by the pressure medium of huge (>=20MPa), cause valve ball to depart from sealing surface of seat, leakage rate increases gradually, more seriously because valve ball skew causes valve rod action bite, valve is difficult to normal switch, under extreme case, causes valve rod to twist off; Secondly the working pressure that the O type circle sealing configuration adopting between valve seat and valve body cannot bear 2500LB, the high score gas of upstream or cold high score gas and oil enter downstream line by valve seat and valve body clearance leakage and produce Accident due to quality; Finally, because the long-term work under the high pressure of 2500LB of common fillers sealing configuration is very easily aging, cause valve rod position sealing failure of fillers, ducted high flammability medium leaks outside to atmosphere via stuffing box.It is a breakneck thing all the time that oil refinery catches fire, if but fire spreading is to being equipped with the air-distillation king-tower of substantial oil and relevant side stripper, and fire will develop into rapidly the disaster that cannot estimate its consequence.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, thereby for the special operation condition of oil refining industry provide a kind of high pressure resistant, sealability is superior, high Reliability of Microprocessor, long-life high pressure filling selfsealings balance swaged forging formula switching ball, ensures crude oil refinery equipment safety, stably operation.
The technological scheme providing according to the utility model, high pressure filling selfsealings balance swaged forging formula switching ball comprises middle valve body, it is characterized in that: middle valve body both sides connect respectively a side valve body by bolt, middle valve body is provided with valve ball mounting hole, valve ball mounting hole opening is bolted upper cover, above covers and is bolted hold-down grid; Integrated type valve ball is installed in valve ball mounting hole, valve body bottom during integrated type valve ball lower end connects, upper cover is stretched out in upper end; The side valve body joint of middle valve body and both sides is provided with valve base sealing assembly; Integrated type valve ball middle part is provided with valve ball limited step, valve ball limited step place mounting plane bearing, plane bearing upper end is provided with the retainer being sleeved on integrated type valve ball, and retainer upper end is provided with and is sleeved on holding down assembly on integrated type valve ball, holds down assembly retainer is compressed; The upper end that holds down assembly is provided with black box, and upper black box will seal between integrated type valve ball and hold-down grid.
Further, valve base sealing assembly comprises valve seat, and valve seat rear end connects support ring, and support ring rear end is provided with belleville spring, and support ring is compressed support ring and valve seat by belleville spring; Between valve seat and support ring, be provided with balanced seal ring.
Further, hold down assembly and comprise spring seat, spring seat bottom is provided with multiple spring mounting holes, is provided with a helical spring that retainer is compressed in each spring mounting hole.
Further, upper black box comprises Packing seat, and Packing seat upper end is provided with high pressure filling, and high pressure filling upper end is provided with Gland.
Further, between integrated type valve ball and hold-down grid, be provided with the first lining.
Further, between integrated type valve ball and retainer, be provided with the second lining.
Further, between integrated type valve ball and middle valve body, be provided with the 3rd lining.
Further, described integrated type valve ball top is provided with transmission shaft, and valve ball bottom is provided with driven shaft.
Compared with the prior art the utility model has the following advantages:
1, three pieces type valve body structure is convenient to processing, assembling, and installation precision is higher, and the valve body of forging molding has ensured the high voltage performance of valve.
2, integrated type valve ball rigidity is better, and valve ball can not produce skew because of pressure medium, has avoided that split type valve ball, stem structure side-play amount under high pressure operating mode is large, easy stuck problem.
3, the transmission shaft of integrated type valve ball and driven shaft part are provided with triple linings supports, have ensured valve Reliability of Microprocessor, stationarity under high pressure.
4, between valve seat and valve body, adopt balanced seal ring to seal, solved O type circle sealing configuration in the past and caused sealing effect to weaken the problem even losing efficacy along with pressure rise.
5, high pressure filling group is not to rely on constantly to compress hold-down grid realization sealing from the external world, but by the helical spring pretension of bottom, then along with pressure rising spring seat, to the pressure of filler, corresponding increase reaches selfsealings effect, has solved the filler problem that easily aging, medium leaks outside from stuffing box under high pressure.
6, helical spring elastic force can be offset the unbalanced force that integrated type valve ball produces under medium effect downwards, prevent valve ball move up cause sealing effect to weaken or valve event not smooth.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of integrated type valve ball.
Fig. 3 is A place enlarged view in Fig. 1.
Fig. 4 is B place enlarged view in Fig. 1.
Description of reference numerals: valve body, 2-side valve body, 3-integrated type valve ball, 4-valve seat, 5-balanced seal ring, 6-support ring, 7-belleville spring, 8-upper cover, 9-retainer, 10-plane bearing, 11-spring seat, 12-helical spring, 13-the second lining, 14-Packing seat, 15-high pressure filling, 16-Gland, 17-hold-down grid, 18-the first lining, 19-the 3rd lining, 20-valve ball mounting hole, 21-valve ball limited step in 1-.
Embodiment
The utility model is further described in connection with the embodiment in accompanying drawing below:
As shown in Figure 1 and 2, the utility model mainly comprises middle valve body 1, and middle valve body 1 both sides connect respectively a side valve body 2 by bolt.Middle valve body 1 and side valve body 2 adopt forging molding.
Integrated type valve ball 3 middle parts are provided with valve ball limited step 21, valve ball limited step 21 place's mounting plane bearings 10, plane bearing 10 upper ends are provided with the retainer 9 being sleeved on integrated type valve ball 3, retainer 9 upper ends are provided with and are sleeved on holding down assembly on integrated type valve ball 3, hold down assembly retainer 9 is compressed.The upper end that holds down assembly is provided with black box, and upper black box will sealing between integrated type valve ball 3 and hold-down grid 17.
As shown in Figure 4, described in hold down assembly and comprise spring seat 11, spring seat 11 bottoms are provided with multiple spring mounting holes, are provided with a helical spring that retainer 9 is compressed 12 in each spring mounting hole.Described upper black box comprises Packing seat 14, and Packing seat 14 upper ends are provided with high pressure filling 15, and high pressure filling 15 upper ends are provided with Gland 16.
Between described integrated type valve ball 3 and hold-down grid 17, be provided with the first lining 18.
Between described integrated type valve ball 3 and retainer 9, be provided with the second lining 13.
Between described integrated type valve ball 3 and middle valve body 1, be provided with the 3rd lining 19.
Described integrated type valve ball top is provided with transmission shaft, and valve ball bottom is provided with driven shaft.
Working principle of the present utility model: processing, assembling are convenient in the valve body design of three pieces type, and the middle valve body of employing forging molding and side valve body have ensured the high voltage performance of valve.Integrated type valve ball rigidity is better, and valve ball can not produce skew because of pressure medium, has avoided that split type valve ball, stem structure side-play amount under high pressure operating mode is large, easy stuck problem.The San Ge position, upper, middle and lower of integrated type valve ball is respectively equipped with triple linings and supports, and has ensured valve Reliability of Microprocessor, stationarity under high pressure.Between valve seat and side valve body, adopt valve base sealing assembly to seal, when the sealing effect of valve valve base sealing assembly during in closed condition can strengthen along with the rising of pressure, avoid medium from valve seat back side seepage.There is holding down assembly of high-pressure self-sealing function and changed to rely in the past and constantly compress hold-down grid from the external world and realize the pattern of sealing, but by the helical spring pretension of bottom, then utilize pressure medium to promote spring seat and reach selfsealings effect.Helical spring elastic force can be offset the unbalanced force that integrated type valve ball produces under medium effect downwards, prevent valve ball move up cause sealing effect to weaken or valve event not smooth.
Claims (8)
1. a high pressure filling selfsealings balance swaged forging formula switching ball, comprise middle valve body (1), it is characterized in that: middle valve body (1) both sides connect respectively a side valve body (2) by bolt, middle valve body (1) is provided with valve ball mounting hole (20), valve ball mounting hole (20) opening is bolted upper cover (8), is bolted hold-down grid (17) on upper cover (8); Integrated type valve ball (3) is installed in valve ball mounting hole (20), valve body (1) bottom during integrated type valve ball (3) lower end connects, upper cover (8) is stretched out in upper end; Side valve body (2) joint of middle valve body (1) and both sides is provided with valve base sealing assembly; Integrated type valve ball (3) middle part is provided with valve ball limited step (21), valve ball limited step (21) is located mounting plane bearing (10), plane bearing (10) upper end is provided with the retainer (9) being sleeved on integrated type valve ball (3), retainer (9) upper end is provided with and is sleeved on holding down assembly on integrated type valve ball (3), holds down assembly retainer (9) is compressed; The upper end that holds down assembly is provided with black box, and upper black box will sealing between integrated type valve ball (3) and hold-down grid (17).
2. high pressure filling selfsealings balance swaged forging formula switching ball as claimed in claim 1, it is characterized in that: described valve base sealing assembly comprises valve seat (4), valve seat (4) rear end connects support ring (6), support ring (6) rear end is provided with belleville spring (7), and support ring (6) is compressed valve seat (4) by belleville spring (7); Between valve seat (4) and support ring (6), be provided with balanced seal ring (5).
3. high pressure filling selfsealings balance swaged forging formula switching ball as claimed in claim 1, it is characterized in that: described in hold down assembly and comprise spring seat (11), spring seat (11) bottom is provided with multiple spring mounting holes, is provided with a helical spring (12) that retainer (9) is compressed in each spring mounting hole.
4. high pressure filling selfsealings balance swaged forging formula switching ball as claimed in claim 1, it is characterized in that: described upper black box comprises Packing seat (14), Packing seat (14) upper end is provided with high pressure filling (15), and high pressure filling (15) upper end is provided with Gland (16).
5. high pressure filling selfsealings balance swaged forging formula switching ball as claimed in claim 1, is characterized in that: between described integrated type valve ball (3) and hold-down grid (17), be provided with the first lining (18).
6. high pressure filling selfsealings balance swaged forging formula switching ball as claimed in claim 1, is characterized in that: between described integrated type valve ball (3) and retainer (9), be provided with the second lining (13).
7. high pressure filling selfsealings balance swaged forging formula switching ball as claimed in claim 1, is characterized in that: between described integrated type valve ball (3) and middle valve body (1), be provided with the 3rd lining (19).
8. high pressure filling selfsealings balance swaged forging formula switching ball as claimed in claim 1, is characterized in that: described integrated type valve ball (3) top is provided with transmission shaft, and valve ball bottom is provided with driven shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320738936.5U CN203686209U (en) | 2013-11-20 | 2013-11-20 | High-pressure balance type forged switching ball valve with self sealing of fillers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320738936.5U CN203686209U (en) | 2013-11-20 | 2013-11-20 | High-pressure balance type forged switching ball valve with self sealing of fillers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203686209U true CN203686209U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320738936.5U Expired - Lifetime CN203686209U (en) | 2013-11-20 | 2013-11-20 | High-pressure balance type forged switching ball valve with self sealing of fillers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203686209U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591327A (en) * | 2013-11-20 | 2014-02-19 | 无锡智能自控工程股份有限公司 | High-pressure packing self-sealing balanced type forging switch ball valve |
| CN104653807A (en) * | 2015-02-10 | 2015-05-27 | 无锡智能自控工程股份有限公司 | Residual oil separating ball valve for delaying coking |
| 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 |
-
2013
- 2013-11-20 CN CN201320738936.5U patent/CN203686209U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591327A (en) * | 2013-11-20 | 2014-02-19 | 无锡智能自控工程股份有限公司 | High-pressure packing self-sealing balanced type forging switch ball valve |
| CN104653807A (en) * | 2015-02-10 | 2015-05-27 | 无锡智能自控工程股份有限公司 | Residual oil separating ball valve for delaying coking |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |