CN202790645U - Bidirectional whole-flow-passage eccentric half ball valve for drinking water - Google Patents
Bidirectional whole-flow-passage eccentric half ball valve for drinking water Download PDFInfo
- Publication number
- CN202790645U CN202790645U CN 201220410212 CN201220410212U CN202790645U CN 202790645 U CN202790645 U CN 202790645U CN 201220410212 CN201220410212 CN 201220410212 CN 201220410212 U CN201220410212 U CN 201220410212U CN 202790645 U CN202790645 U CN 202790645U
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- Prior art keywords
- valve
- eccentric
- center
- valve shaft
- flow
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- Expired - Lifetime
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- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 18
- 239000003651 drinking water Substances 0.000 title claims abstract description 15
- 235000020188 drinking water Nutrition 0.000 title abstract 2
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 235000012206 bottled water Nutrition 0.000 claims description 13
- 239000002384 drinking water standard Substances 0.000 abstract description 6
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000010935 stainless steel Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 2
- MHKWSJBPFXBFMX-UHFFFAOYSA-N iron magnesium Chemical compound [Mg].[Fe] MHKWSJBPFXBFMX-UHFFFAOYSA-N 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 229910001141 Ductile iron Inorganic materials 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a bidirectional whole-flow-passage eccentric half ball valve for drinking water, which comprises a valve body, wherein the upper part of the valve body is connected with a valve cover; the middle part of the valve cover is provided with a through hole, and a valve shaft passes through the through hole; the valve shaft is rotationally and hermetically connected with the valve cover; the valve shaft passes through the valve cover, and is connected with a driving device; an eccentric distance exists between the rotation center of the valve shaft and the center of the valve body; an eccentric distance exists between the rotation center of the valve shaft and the center of a valve shaft flow passage; and an eccentric angle exists between the center of the valve body and the center of a valve base. The valve is simple in structure; and a tri-eccentric structure is adopted, so that wear is reduced to the maximum extent, the service life is prolonged, and whole-flow-passage water loss-free bidirectional sealing is realized. A magnesium iron material is adopted instead of stainless steel, and each part undergoes anti-corrosion treatment separately, so that the valve reaches a drinking water standard. The bidirectional whole-flow-passage eccentric half ball valve meets all requirements on municipal valves.
Description
Technical field
The utility model belongs to eccentric half-ball valve, is specifically related to a kind of bidirectional full flow passage eccentric half-ball valve.
Background technique
The municipal running water system requires with external the same, pipeline and valve require to reach drinking water standard, now smaller diameter valve adopts Stainless Steel Ball Valve in a large number in use the system, Stainless Steel Ball Valve without acceptance of persons, its cost is high, working life is short and be only applicable to small-bore.The valve specific requirement is used in municipal administration: it is low to reach drinking water standard, full runner, two way sealed, long service life and cost, and which kind of valve present valve market does not also have satisfy simultaneously above-mentioned requirements.
Summary of the invention
The purpose of this utility model is to provide a kind of simultaneously satisfied municipal administration to reach drinking water standard, full runner, two way sealed, long service life and all low requirements of cost with valve.
The technical solution adopted in the utility model is: potable water bidirectional full flow passage eccentric half-ball valve, comprise valve body, valve body top is connected with valve gap, the valve gap middle part is for through hole and passed valve shaft, rotary seal is connected between valve shaft and the described valve gap, valve shaft passes the valve gap connecting drive device, it is characterized in that:
There is a throw of eccentric at valve shaft rotating center and valve body center;
There is a throw of eccentric at valve shaft rotating center and valve shaft runner center;
Valve flowing channel center line and sealing surface of seat center line have an eccentric angle.
Described valve shaft outer wall is provided with trim ring, is provided with the spherical crown seal ring between trim ring and valve shaft.
The corresponding valve seat that is provided with the spherical crown seal ring in the runner mouth place of described valve body one side.
The beneficial effects of the utility model are: potable water bidirectional full flow passage eccentric half-ball valve valve mechanism is simple, adopts three eccentric structures, has reduced to greatest extent wearing and tearing, has increased working life; Valve shaft runner center is consistent with the valve body center behind the valve opening, realizes full runner, without damage by water; Realize two way sealed.Adopt ductile iron material to replace stainless steel, each part carries out separately preservative treatment, whole plastic-blasting again after the assembling, and the molding powder composition is the sanitation-grade standard, strong adhesion, sanitation-grade screw thread glue is adopted at the screw thread position, makes valve reach drinking water standard.Like this so that the utility model satisfies all requirements that valve is used in municipal administration.
Description of drawings
Fig. 1 is the eccentric half-ball valve structural representation
Fig. 2 is eccentric half-ball valve closed condition plan view
Fig. 3 is eccentric half-ball valve opening state plan view
Fig. 4 is eccentric half-ball valve sealing pair enlarged view
Embodiment
As shown in Figure 1, potable water bidirectional full flow passage eccentric half-ball valve comprises valve body 1, valve body 1 top is connected with valve gap 3, valve gap 3 middle parts are through hole and have passed valve shaft 2, and rotary seal is connected between valve shaft 2 and the described valve gap 3, and valve shaft 2 passes valve gap 3 connecting drive devices 4.The utility model adopts upper cover-opening structure, does not need valve is disassembled from pipeline when maintenance, only need open valve gap 3, takes out valve shaft 2, convenient for maintaining from valve body 1.Potable water bidirectional full flow passage eccentric half-ball valve replaces stainless steel with ductile iron material, on common antiseptic basis, and whole plastic-blasting again, sanitation-grade screw thread glue is adopted at the screw thread position, thereby makes valve reach drinking water standard.
As shown in Figures 2 and 3, potable water bidirectional full flow passage eccentric half-ball valve, valve shaft rotating center 5 has an eccentric distance e with the valve flowing channel center
1, effect is to make valve have selfsealings, and the larger sealed force moment of pressure is larger, and sealability is better; Need simultaneously only very small angle of one of valve shaft 2 rotation, sealing pair (spherical crown seal ring 9 and valve seat 10) is namely thrown off, reduces the sealing pair friction time, prolongation valve working life.
Potable water bidirectional full flow passage eccentric half-ball valve, valve shaft rotating center 5 has an eccentric distance e with valve shaft runner center 7
2, effect is to make valve have full runner function, because of eccentric distance e
1Existence, when valve wide open, only have the design eccentric distance e
2, could allow valve shaft runner center 7 overlap with valve flowing channel center 6, guarantee the full runner of valve opening, be equal to one section pipeline, two ends only have small gap, and both without damage by water, energy saving has prevented that again silting is in valve.
Such as Fig. 2 and shown in Figure 4, potable water bidirectional full flow passage eccentric half-ball valve, valve flowing channel center line and sealing surface of seat center line have an eccentric angle e
3When the pressure testing of valve forward, because valve has selfsealings, the larger sealability of pressure is better; And oppositely during pressure testing, because valve shaft 2 can be made a concession and distortion by pressurizeds, be the compensation amount of deformation and guarantee seal pressure that must increase the decrement of spherical crown seal ring 9 in the sealing pair (spherical crown seal ring 9 and valve seat 10), decrement is regulated by trim ring 8.After the decrement of spherical crown seal ring 9 increased, during valve closing, spherical crown seal ring 9 was easily sheared by valve seat 10, eccentric angle e
3Effect be to prevent that spherical crown seal ring 9 from being sheared by valve seat 10 because rigidly connect when touching eccentric angle e when spherical crown seal ring 9 and valve seat 10
3Increased the contact distance of spherical crown seal ring 9 with valve seat 10, made spherical crown seal ring 9 be easy to enter in the valve seat 10, and along with valve continues to close the spherical crown seal ring 9 that gradually reduces.So when the decrement of spherical crown seal ring 9 increased, spherical crown seal ring 9 can be not tangent by valve seat 10 sealing surfaces, thereby realize two way sealed.
Potable water bidirectional full flow passage eccentric half-ball valve, valve shaft 2 outer walls are provided with trim ring 8, are provided with spherical crown seal ring 9 between trim ring 8 and valve shaft 2.Runner mouth place and spherical crown seal ring 9 corresponding positions in valve body 1 one sides are provided with valve seat 10.Trim ring 8 has certain gap with valve shaft 2 installation places, thereby can regulate the decrement of spherical crown seal ring 9, and reduction difficulty of processing, spherical crown seal ring 9 had both prevented from being gone out by press water, reserve again compression volume, spherical crown seal ring 9 can slightly rock under the impact of forward and reverse press water simultaneously, makes it have the selfsealings performance, thereby realizes two way sealed.Valve seat 10 is Ni-based stainless steels of built-up welding on valve body 1, and both wear-resistant and medium washed away, again corrosion protection, and spherical crown seal ring 9 is hidden in the runner side when valve opening, is not washed away.Spherical crown seal ring 9 and valve seat 10 have consisted of the sealing pair of potable water bidirectional full flow passage eccentric half-ball valve.
Claims (3)
1. a potable water bidirectional full flow passage eccentric half-ball valve comprises valve body, and valve body top is connected with valve gap, and valve gap middle part is for through hole and passed valve shaft, and rotary seal is connected between valve shaft and the described valve gap, and valve shaft passes the valve gap connecting drive device, it is characterized in that:
There is a throw of eccentric at valve shaft rotating center and valve body center;
There is a throw of eccentric at valve shaft rotating center and valve shaft runner center;
Valve flowing channel center line and sealing surface of seat center line have an eccentric angle.
2. a kind of potable water bidirectional full flow passage eccentric half-ball valve that such as claim 1 is, it is characterized in that: described valve shaft outer wall is provided with trim ring, is provided with the spherical crown seal ring between trim ring and valve shaft.
3. a kind of potable water bidirectional full flow passage eccentric half-ball valve that such as claim 1 is is characterized in that: the corresponding valve seat that is provided with the spherical crown seal ring in the runner mouth place of described valve body one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220410212 CN202790645U (en) | 2012-08-17 | 2012-08-17 | Bidirectional whole-flow-passage eccentric half ball valve for drinking water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220410212 CN202790645U (en) | 2012-08-17 | 2012-08-17 | Bidirectional whole-flow-passage eccentric half ball valve for drinking water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202790645U true CN202790645U (en) | 2013-03-13 |
Family
ID=47817910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220410212 Expired - Lifetime CN202790645U (en) | 2012-08-17 | 2012-08-17 | Bidirectional whole-flow-passage eccentric half ball valve for drinking water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202790645U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565425A (en) * | 2015-01-05 | 2015-04-29 | 应建忠 | C-shaped four-eccentric slurry pump control valve |
| CN105822783A (en) * | 2015-01-05 | 2016-08-03 | 上海美科阀门有限公司 | Dual-center eccentric ball valve |
| CN109268525A (en) * | 2018-10-15 | 2019-01-25 | 兰州高压阀门有限公司 | A kind of inflatable valve component |
| CN112610714A (en) * | 2020-12-18 | 2021-04-06 | 博纳斯威阀门股份有限公司 | Double-valve-body side-mounted global valve |
-
2012
- 2012-08-17 CN CN 201220410212 patent/CN202790645U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565425A (en) * | 2015-01-05 | 2015-04-29 | 应建忠 | C-shaped four-eccentric slurry pump control valve |
| CN105822783A (en) * | 2015-01-05 | 2016-08-03 | 上海美科阀门有限公司 | Dual-center eccentric ball valve |
| CN109268525A (en) * | 2018-10-15 | 2019-01-25 | 兰州高压阀门有限公司 | A kind of inflatable valve component |
| CN112610714A (en) * | 2020-12-18 | 2021-04-06 | 博纳斯威阀门股份有限公司 | Double-valve-body side-mounted global valve |
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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: 20130313 |