CN204477334U - A kind of bidirectional flow very stiff and demanding sealing ancient cooking vessel ball valve - Google Patents
A kind of bidirectional flow very stiff and demanding sealing ancient cooking vessel ball valve Download PDFInfo
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- CN204477334U CN204477334U CN201520086586.8U CN201520086586U CN204477334U CN 204477334 U CN204477334 U CN 204477334U CN 201520086586 U CN201520086586 U CN 201520086586U CN 204477334 U CN204477334 U CN 204477334U
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- ball valve
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Abstract
The utility model discloses a kind of bidirectional flow very stiff and demanding sealing ancient cooking vessel ball valve, comprise valve body, valve rod, spool, in described valve body, valve rod is provided with spool; Spool is in stem shaft to being part sphere structure, and sphere structure surface portion is spool sphere; Meanwhile, valve inner is provided with valve seat, and valve seat outer surface is seat ring cone structure, and the seat ring conical surface is connected by point cantact mode with spool sphere; The beneficial effects of the utility model: structure is two-way or either direction pressurized is not revealed, very stiff and demanding sealing long service life, compact structure, volume are little, lightweight, the advantages such as capital cost are installed in saving transport; In addition, compared with existing ball valve, its weight only has 1/5 of existing ball valve, volume only has 1/3, only has existing gate valve 1/3, volume only has 1/2 with existing its weight of gate valve weight/power ratio; 10% can be saved with butterfly valve than oppositely revealing, reaching 30 years working life.
Description
Technical field
The utility model relates to a kind of sealing ancient cooking vessel ball valve, particularly a kind of bidirectional flow very stiff and demanding sealing ancient cooking vessel ball valve.
Background technique
No matter be ball valve or butterfly valve, its its common feature early stage is all use soft seal.The topmost advantage of soft seal is that sealing easily realizes, and shortcoming is easily swelling in a liquid, aging, and its sealing is by friction, distortion realization, and thus working life is very short.In addition the complex structure of this type of valve, volume are large in the market, and it is higher that capital cost is installed in transport; Meanwhile, there is the shortcomings such as the reverse leakage of butterfly valve is larger.
Model utility content
For the shortcoming of existing ball valve, the utility model provides a kind of novel bidirectional flow very stiff and demanding sealing ancient cooking vessel ball valve.
To achieve these goals, the measure taked of the utility model
A kind of bidirectional flow very stiff and demanding sealing ancient cooking vessel ball valve, comprises valve body, valve rod, spool, in described valve body, valve rod is provided with spool; Spool is in stem shaft to being part sphere structure, and sphere structure surface portion is spool sphere; Meanwhile, valve inner is provided with valve seat, and valve seat outer surface is seat ring cone structure, and the seat ring conical surface is connected by point cantact mode with spool sphere;
Described valve core rotation center and spool sphere centre are decentraction structure;
The cambered surface of described spool sphere is not vertical with annular conical surface hatching line with the intersection point that ball center is formed with the point of seat ring taper-face contact.
The beneficial effects of the utility model: structure is two-way or either direction pressurized is not revealed, have very stiff and demanding sealing long service life, compact structure, volume little, lightweight, save transport the advantages such as capital cost be installed; In addition, compared with existing ball valve, its weight only has 1/5 of existing ball valve, volume only has 1/3, and with existing gate valve ratio, its weight of weight only has existing gate valve 1/3, volume only has 1/2; 10% can be saved with butterfly valve than oppositely revealing, reaching 30 years working life.
Accompanying drawing explanation
Fig. 1, the utility model structural profile structural representation.
Fig. 2, the utility model structure seals close-up schematic view firmly.
Embodiment
A kind of bidirectional flow very stiff and demanding sealing ancient cooking vessel ball valve, as shown in Figure 1 and Figure 2, comprises valve body 1, valve rod 2, spool 3, in described valve body 1, valve rod 2 is provided with spool 3; Spool 3 is axially part sphere structure at valve rod 2, and sphere structure surface portion is spool sphere 4; Meanwhile, valve body 1 inside is provided with valve seat, and valve seat outer surface is the seat ring conical surface 5 structure, and the seat ring conical surface 5 is connected by point cantact mode with spool sphere 4.In the actual implementation process of patent, this product main body is the combination of ball valve and butterfly valve, the similar butterfly valve of main structure; In addition, spool 3 is axially part sphere structure at valve rod 2, and a part near spool 3 to be part sphere and spool 3 the get actual effective part of spheroid and sealing surface and spool sphere 4, the valve seat of valve body 1 inside be annular conical surface and with valve body and the seat ring conical surface 5, meanwhile, spool 3 center of rotation and spool sphere 4 decentraction.As shown in Figure 2, the cambered surface of spool sphere 4 and the contact of the seat ring conical surface 5 are point cantact, thus continuously linear sealing is formed, but the point that spool sphere 4 contacts with the seat ring conical surface 5 and the intersection point that ball center is formed are not vertical with annular conical surface hatching line, in other words, sealing surface of seat is not the continuous surface of the tangent line formation of spheroid.In actual applications, when there being counter-force device can offset opposition when acting in opposition pressure or acting in opposition pressure are greater than positive acting pressure initiation back-pressure difference, make it to reach two way sealed.In addition, this patent structural feature makes this product tool have the following advantages; 1, adaptation function, based on principle of entropy increase, under the effect of gravity or other power, spheroid in conical surface can move with conical surface automatic alignment center from either direction and overlap, namely, under medium effect, automatically can complete when spool and valve seat center decentraction and center and automatic reclosing are sealed; 2, open and close without friction, based on spheroid eccentric rotary principle, during unlatching, spheroid is lifted off a seat in a flash, and during closedown, spheroid overlaps with valve seat in a flash, without friction when thus opening and closing; 3, automatically make wearing and tearing up, when spheroid or valve seat have equidistantly expansion circle property wearing and tearing, equally based on spheroid eccentric rotary principle, during closedown, spheroid moves to its overlapping positions, and under principle of entropy increase effect, automatically adjusts attitude and close tighter and tighter; 4, based on same principle, on potted line projection plane, when spheroid is closed, its area constantly expands, and during unlatching, its area constantly reduces; 5, amplify seal pressure, line contact sealing can obtain great seal pressure, and making very stiff and demanding sealing obtain zero leakage becomes possibility.And the characteristic of sphere to make it embed extremely shallow, if the collocation of sealing pair material hardness chooses suitably and the trace performance that disappears of seat material, antiscour polishing machine well, guarantee the long life when reaching zero leakage; 6, long service life, valve core sealed cover and sealing surface of seat are metal solid, air protection or vacuum built-up welding can be adopted as required, the method such as plasma spraying splashes, the radium-shine atoms diffuse of ether forms the material layer such as high alloy steel, abrasion-proof stainless steel, cemented carbide, ultra hard ceramic alloy, cubic boron nitride, synthetic diamond that is homogeneous or gradient on matrix, to adapt to various different operating mode, obtain the working life of superelevation; 7, work in extreme temperatures, this product does not have the restricted component of the operating temperature such as rubber, plastics, thus select suitable valve body material can lower than subzero-200 DEG C or higher than the condition being more than 1200 DEG C under use, also can use in various aggressive medium, obtain between application area and expand greatly; 8, can use in solid-liquid two-phase or the simultaneous medium of solid-liquid-gas three phase, also can use under Asia solid-state fluidised form medium is as amorphous powder, solid granulates body, slag, mine tailing, dense ore pulp, slag slurry, concrete slurry, paper pulp, mud operating mode; 9, the adjustment of hydrodynamic pressure, pressure reduction, flow, temperature, this product is a part for spheroid due to spool and is less than the half of spheroid, valve seat is conical surface, thus can be used for the adjustment of hydrodynamic pressure, pressure reduction, flow, the relation of aperture substantially in equal percentage of hydrodynamic pressure, pressure reduction, flow, temperature and spool.During small guide vane, advantage is particularly evident, and during because of its forward small guide vane, fluid-phase points to valve pocket center to bursting out, and the fluid burst out collides mutually at valve pocket center, effectively eliminates the impact potential energy of flowing medium, reduces noise and vibration.Streamlined spool reduces even eliminates suction eddy district, the spool back side, eliminates the harm to spool of cavitation and cavitation erosion.In the medium open range of very large regions, fluid flow, pressure, pressure reduction and aperture close like equal percentage, it is adjustable, and district is 30 ~ 80% of aperture, and adjustable bore is large, ratio is large; 10, passage is smooth, flow resistance coefficient is little, and flow resistance coefficient is only 1/1 to five/3rd of stop valve.Streamlined internals dross is few, and valve pocket bottom accumulated slag is few.The shortcoming of erosive wear especially severe when not having the vibration of the small guide vane of gate valve violent and gate valve, a ball valve small guide vane; 11, multi-function separation-type pump-controlling valve, direct-operated regulator, floater controlled valve, decompression valve, pressure relief safety valve etc. can be used as; 12, floor space is few, lightweight, weight be only ball valve 1/5th, 1/3rd of gate valve, 1/2nd of stop valve, this product manufacturing volume, installation volume, operational volume are all very little, and volume is only 1/6th of gate valve, 1/2nd of stop valve.Due to spool almost symmetry balance, opening and closing moment little, when subtracting power without screw thread, worm gear, being about 1/4th of ball valve.Open and close corner and be less than or equal to 90 °, thus keying stroke is short, keying is rapid.Because its structure length is short, heavy caliber, extremely bigbore valve thus can be produced.
Simple change and the replacement of those ordinary skill in the art are all within protection domain of the present utility model.
Claims (3)
1. a bidirectional flow very stiff and demanding sealing ancient cooking vessel ball valve, comprise valve body (1), valve rod (2), spool (3), it is characterized in that, in described valve body (1), valve rod (2) is provided with spool (3); Spool (3) is axially part sphere structure at valve rod (2), and sphere structure surface portion is spool sphere (4); Meanwhile, valve body (1) inside is provided with valve seat, and valve seat outer surface is the seat ring conical surface (5) structure, and the seat ring conical surface (5) is connected by point cantact mode with spool sphere (4).
2. a kind of bidirectional flow very stiff and demanding sealing ancient cooking vessel ball valve according to claim 1, it is characterized in that, described spool (3) center of rotation and spool sphere (4) center are decentraction structure.
3. a kind of bidirectional flow very stiff and demanding sealing ancient cooking vessel ball valve according to claim 1, it is characterized in that, the cambered surface of described spool sphere (4) is not vertical with annular conical surface hatching line with the seat ring conical surface (5) point contacted and the intersection point that ball center is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520086586.8U CN204477334U (en) | 2015-02-06 | 2015-02-06 | A kind of bidirectional flow very stiff and demanding sealing ancient cooking vessel ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520086586.8U CN204477334U (en) | 2015-02-06 | 2015-02-06 | A kind of bidirectional flow very stiff and demanding sealing ancient cooking vessel ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204477334U true CN204477334U (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520086586.8U Expired - Fee Related CN204477334U (en) | 2015-02-06 | 2015-02-06 | A kind of bidirectional flow very stiff and demanding sealing ancient cooking vessel ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204477334U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221765A (en) * | 2015-10-28 | 2016-01-06 | 浙江顺源阀门有限公司 | A kind of eccentric ball-type butterfly valve |
| CN106870753A (en) * | 2015-12-14 | 2017-06-20 | 王张勇 | The valve part surface treatment method and valve of a kind of utilization diamond |
| CN112028171A (en) * | 2020-09-09 | 2020-12-04 | 哈尔滨理工大学 | Cavitator with adjustable annular conical gap |
-
2015
- 2015-02-06 CN CN201520086586.8U patent/CN204477334U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221765A (en) * | 2015-10-28 | 2016-01-06 | 浙江顺源阀门有限公司 | A kind of eccentric ball-type butterfly valve |
| CN106870753A (en) * | 2015-12-14 | 2017-06-20 | 王张勇 | The valve part surface treatment method and valve of a kind of utilization diamond |
| CN112028171A (en) * | 2020-09-09 | 2020-12-04 | 哈尔滨理工大学 | Cavitator with adjustable annular conical gap |
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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 |
Granted publication date: 20150715 Termination date: 20170206 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |