CN102996853A - High-temperature, high-class and large-caliber electric high-feeding-hole three-way valve - Google Patents
High-temperature, high-class and large-caliber electric high-feeding-hole three-way valve Download PDFInfo
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- CN102996853A CN102996853A CN201210293733XA CN201210293733A CN102996853A CN 102996853 A CN102996853 A CN 102996853A CN 201210293733X A CN201210293733X A CN 201210293733XA CN 201210293733 A CN201210293733 A CN 201210293733A CN 102996853 A CN102996853 A CN 102996853A
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- valve
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- high temperature
- heavy caliber
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Abstract
The invention discloses an electric high-feeding-hole three-way valve, which is designed in a manner specific to the requirements of high temperatures such as fire and electricity, high class, high power, large caliber, high adding hole, higher difficulty in controlling switching between main and branch paths, the need of an external high-power or large-sized driving mechanism for operating, and incapability of meeting the requirement that the switching time of the main and branch paths is less than or equal to 50 seconds. A novel material, i.e., 15NiCuMoNb5-6-4(WB36) is taken as a main body material; an integrally-forged valve body structural design is adopted; a planar sealing way is adopted for a sealing surface; a body and seat assembly welding structural design is adopted; an upper valve base and a packing box are connected into an integrated structure by adopting bolts; a C-shaped sealing ring structure with a metal reinforced ring is adopted; and the requirements of opening and closing torques and opening and closing time on the main path are met simultaneously by adopting the structural design of a high-power and high-torque electric device and a dual-head trapezoidal threaded valve rod.
Description
Technical field
The present invention relates to valve field, relate to concretely a kind of high temperature, high pound level, the electronic height of heavy caliber and add the entrance three-way valve.
Background technique
Along with development and the growth of science and technology, the sustainable growth of various countries' economic strength, thermal power generation be towards more high-power, more extensive future development.Particularly the popularizing and using of overcritical, ultra supercritical fired power generating unit technology impels China's thermoelectricity technology must rise to the level of more increasing.Become the key factor of restriction China fired power generating unit development for research and development overcritical, ultra supercritical fired power generating unit critical valves.No matter be the needs from market economic development, or the requirement on China's strategic development direction, all need the development project of our the positive critical valves of putting into heavy caliber, high pound level.
The high temperature such as thermoelectricity, high pound level, high-power, heavy caliber be high to add main road, the bypass-switching contr difficulty is larger, and needs extraneous high-power or large-scale driving mechanism to operate, and can't satisfy again the requirement of main road, bypass changeover≤50s simultaneously.
Summary of the invention
For above-mentioned technical problem, the object of the present invention is to provide a kind of high temperature, high pound level, the electronic height of heavy caliber to add the entrance three-way valve.
The technological scheme that the present invention solves is a kind of high temperature, high pound level, the electronic height of heavy caliber adds the entrance three-way valve, it comprises valve rod, valve body and flap, Electric actuator is fixed on the support and is connected with valve rod, valve rod is fixed in the middle of the support, indicator collet is fixed on the valve rod by screw and key, and pass valve rod and support, the valve rod both sides of indicator collet lower end are provided with hold-down grid successively, filler pressing sleeve, filler and Packing seat, the support lower end is connected with gland with valve body, gland is bolted between valve body and Stuffing box, be provided with pendant collet between valve body and the Stuffing box, spacer and seal ring, Stuffing box is connected with upper valve base, upper valve base and valve rod joint are provided with axle sleeve, be provided with "O"-ring between upper valve base and the valve body, back-up ring and " C " type circle, valve rod passes upper valve base and extends to flap, the valve rod lower end is provided with disc gland, disc gland is fixed as with flap, flap, valve body, lower valve base and upper valve base are fixed as together, valve body is provided with 3 valve ports, is respectively entrance, outlet and bypass outlet.
Described high temperature, high pound level, heavy caliber are that the condition at 300 ℃ of operating temperatures, nominal pressure PN42Mpa, bore DN450 is optimal conditions.
Described valve body is selected 15NiCuMoNb5-6-4(WB36) material.
Described valve body lumen adopts self-pressure-sealed structure.
Described valve body and valve seat adopt the unit-welded structure.
Described upper valve base and the Stuffing box formula Split type structure that is integral with bolts
Described valve rod is the double end trapezoidal thread valve rod.
The two pass xenogenesis sealing configuration that described upper valve base axial seal is adopted the "O"-ring sealing and combined with " C " type circle sealing configuration of metal stiffening ring.
Has position indicator on the described Electric actuator.
Has lead limit switch on the described Electric actuator.
Has digit position output signal feedback means on the described Electric actuator.
The invention has the advantages that:
1, valve adopts the solid forging structural design, has avoided the smithwelding structure to have the phenomenon of welding stress defective.Valve adopts 15NiCuMoNb5-6-4(WB36) new material makes valve integral body can alleviate weight more than 1/3.
2, be convenient to processing: the structural type that adopts upper valve base and Stuffing box to be separated into two bodies designs, the difficulty of the manufacturing of minimizing, and be convenient to processing and grinding to the upper valve base sealing surface.
3, sealing, good corrosion resistance: adopt the sealing configuration form of replating cemented carbide plane sealing, improve resistance to erosion, the corrosion resistance of sealing surface, guarantee the sealing effect of sealing surface, prolonged the working life of sealing surface.The valve body lumen adopts self-pressure-sealed structural design, and assembly manipulation is convenient, and can reach the requirement of high pressure sealability.Body, seat unit-welded structural design have reduced the difficulty that the valve body built-up welding is processed, and are beneficial to processing, the grinding of valve sealing face, guarantee the high performance requirements of sealability.Two pass xenogenesis sealing principle structural design is adopted in the valve seat axial seal of living, and guarantees the solid property of sealing sealing, and the requirement of high temperature lower seal performance.With " C " type circle sealing configuration of metal stiffening ring, sealability is more reliable when guaranteeing high temperature, high pressure.Can guarantee the reliability that seals with the flexible sealing ring of metallic cover, guarantee again the integrity of sealing structure of rings, be convenient to assembling and dismounting, can not cause the seal ring fragmentation to occur and cause the phenomenon that has disintegrating slag in the pipeline.
4, the position indicator with the position indicator collet designs, can realize on-the-spot directly perceived demonstration the to the valve switch position, and with the lead limit switch design, and the digit position output signal feedback means of Electric actuator, can realize the monitoring to the valve switch state whenever and wherever possible.
Description of drawings
Fig. 1 is structural representation sketch of the present invention.
Reference character shown in Figure 1 is as follows: 1, valve body, 2, lower valve base, 3, flap, 4, valve rod, 5, disc gland, 6, upper valve base, 7, " C " type circle, 8, "O"-ring, 9, back-up ring, 10, hold-down grid, 11, axle sleeve, 12, filler pressing sleeve, 13, filler, 14, Stuffing box, 15, seal ring, 16, spacer, 17, pendant collet, 18, gland, 19, Packing seat, 20, indicator collet, 21, key, 22, screw, 23, support, 24, Electric actuator.
Embodiment
For further this high temperature of understanding, high pound level, the electronic height of heavy caliber add the entrance three-way valve, accompanying drawings is as follows.
It comprises valve rod 4, valve body 1 and flap 3, Electric actuator 24 is fixed on the support 23 and is connected with valve rod 4, valve rod 4 is fixed in the middle of the support 23, indicator collet 20 is fixed on the valve rod 4 by screw 22 and key 21, and pass valve rod 4 and support 23, valve rod 4 both sides of indicator collet 20 lower ends are provided with hold-down grid 10 successively, filler pressing sleeve 12, filler 13 and Packing seat 19, support 23 lower ends are connected with gland 18 with valve body 1, gland 18 is bolted between valve body 1 and Stuffing box 14, be provided with pendant collet 17 between valve body 1 and the Stuffing box 14, spacer 16 and seal ring 15, Stuffing box 14 is connected with upper valve base 6, upper valve base 6 is provided with axle sleeve 11 with valve rod 4 joints, be provided with "O"-ring 8 between upper valve base 6 and the valve body 1, back-up ring 9 and " C " type circle 7, valve rod 4 passes upper valve base 6 and extends to flap 3, and valve rod 4 lower ends are provided with disc gland 5, and disc gland 5 is fixed as with flap 3, flap 3, valve body 1, lower valve base 2 and upper valve base 6 are fixed as together, and valve body 1 is provided with 3 valve ports.
Claims (10)
1. high temperature, high pound level, the electronic height of heavy caliber adds the entrance three-way valve, it comprises valve rod, valve body and flap, Electric actuator is fixed on the support and is connected with valve rod, valve rod is fixed in the middle of the support, indicator collet is fixed on the valve rod by screw and key, and pass valve rod and support, the valve rod both sides of indicator collet lower end are provided with hold-down grid successively, filler pressing sleeve, filler and Packing seat, the support lower end is connected with gland with valve body, gland is bolted between valve body and Stuffing box, be provided with pendant collet between valve body and the Stuffing box, spacer and seal ring, Stuffing box is connected with upper valve base, and upper valve base and valve rod joint are provided with axle sleeve, are provided with "O"-ring between upper valve base and the valve body, back-up ring and " C " type circle, valve rod passes upper valve base and extends to flap, the valve rod lower end is provided with disc gland, and disc gland is fixed as with flap, flap, valve body, lower valve base and upper valve base are fixed as together, valve body is provided with 3 valve ports, is respectively entrance, outlet and bypass outlet.
2. high temperature according to claim 1, high pound level, the electronic height of heavy caliber add the entrance three-way valve, it is characterized in that: described high temperature, high pound level, heavy caliber are that the condition at 300 ℃ of operating temperatures, nominal pressure PN42Mpa, bore DN450 is optimal conditions.
3. high temperature according to claim 1, high pound level, the electronic height of heavy caliber add the entrance three-way valve, and it is characterized in that: described valve body is selected 15NiCuMoNb5-6-4(WB36) material.
4. high temperature according to claim 1, high pound level, the electronic height of heavy caliber add the entrance three-way valve, and it is characterized in that: described valve body lumen adopts self-pressure-sealed structure.
5. high temperature according to claim 1, high pound level, the electronic height of heavy caliber add the entrance three-way valve, and it is characterized in that: described valve body and valve seat adopt the unit-welded structure.
6. high temperature according to claim 1, high pound level, the electronic height of heavy caliber add the entrance three-way valve, it is characterized in that: described upper valve base and the Stuffing box formula Split type structure that is integral with bolts.
7. high temperature according to claim 1, high pound level, the electronic height of heavy caliber add the entrance three-way valve, and it is characterized in that: described valve rod is the double end trapezoidal thread valve rod.
8. high temperature according to claim 1, high pound level, the electronic height of heavy caliber add the entrance three-way valve, it is characterized in that: the two pass xenogenesis sealing configuration that described upper valve base axial seal is adopted the "O"-ring sealing and combined with " C " type circle sealing configuration of metal stiffening ring.
9. high temperature according to claim 1, high pound level, the electronic height of heavy caliber add the entrance three-way valve, it is characterized in that: have position indicator on the described Electric actuator.
10. high temperature according to claim 1, high pound level, the electronic height of heavy caliber add the entrance three-way valve, it is characterized in that: have lead limit switch and digit position output signal feedback means on the described Electric actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210293733XA CN102996853A (en) | 2012-08-17 | 2012-08-17 | High-temperature, high-class and large-caliber electric high-feeding-hole three-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210293733XA CN102996853A (en) | 2012-08-17 | 2012-08-17 | High-temperature, high-class and large-caliber electric high-feeding-hole three-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102996853A true CN102996853A (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210293733XA Pending CN102996853A (en) | 2012-08-17 | 2012-08-17 | High-temperature, high-class and large-caliber electric high-feeding-hole three-way valve |
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| CN (1) | CN102996853A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344011A (en) * | 2013-08-08 | 2015-02-11 | 北京斯维克阀门厂 | Bypass three-way valve of high-pressure heater |
| CN105202223A (en) * | 2015-09-17 | 2015-12-30 | 哈电集团哈尔滨电站阀门有限公司 | Hydraulic high-pressure heater three-way valve |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0634068A (en) * | 1992-07-10 | 1994-02-08 | Hironobu Yamashita | Valve |
| JPH0972439A (en) * | 1995-08-31 | 1997-03-18 | Kurimoto Ltd | Three-way valve |
| CN2773424Y (en) * | 2005-03-04 | 2006-04-19 | 刘松彬 | Water-supply three-way valve of high-pressure water heater in power plant |
| CN200975519Y (en) * | 2006-11-25 | 2007-11-14 | 青岛电站阀门有限公司 | Three-way controlling valves for high-pressure heater |
| CN101451710A (en) * | 2008-12-30 | 2009-06-10 | 杭州华惠阀门有限公司 | Protection arrangement for high-pressure heater |
| CN201363456Y (en) * | 2009-01-21 | 2009-12-16 | 河南开封高压阀门有限公司 | T-shaped tee valve for inlet of high pressure heater |
| CN201521662U (en) * | 2009-09-27 | 2010-07-07 | 安徽省天马泵阀集团有限公司 | Outlet valve of circulating pump |
| CN201787098U (en) * | 2010-09-28 | 2011-04-06 | 浙江中德自控阀门有限公司 | Cylinder and air chamber sealing device for high-temperature threeway valve |
| CN202203443U (en) * | 2011-09-15 | 2012-04-25 | 南通市电站阀门有限公司 | High-adding-opening three-way valve with guide throttle device |
-
2012
- 2012-08-17 CN CN201210293733XA patent/CN102996853A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0634068A (en) * | 1992-07-10 | 1994-02-08 | Hironobu Yamashita | Valve |
| JPH0972439A (en) * | 1995-08-31 | 1997-03-18 | Kurimoto Ltd | Three-way valve |
| CN2773424Y (en) * | 2005-03-04 | 2006-04-19 | 刘松彬 | Water-supply three-way valve of high-pressure water heater in power plant |
| CN200975519Y (en) * | 2006-11-25 | 2007-11-14 | 青岛电站阀门有限公司 | Three-way controlling valves for high-pressure heater |
| CN101451710A (en) * | 2008-12-30 | 2009-06-10 | 杭州华惠阀门有限公司 | Protection arrangement for high-pressure heater |
| CN201363456Y (en) * | 2009-01-21 | 2009-12-16 | 河南开封高压阀门有限公司 | T-shaped tee valve for inlet of high pressure heater |
| CN201521662U (en) * | 2009-09-27 | 2010-07-07 | 安徽省天马泵阀集团有限公司 | Outlet valve of circulating pump |
| CN201787098U (en) * | 2010-09-28 | 2011-04-06 | 浙江中德自控阀门有限公司 | Cylinder and air chamber sealing device for high-temperature threeway valve |
| CN202203443U (en) * | 2011-09-15 | 2012-04-25 | 南通市电站阀门有限公司 | High-adding-opening three-way valve with guide throttle device |
Non-Patent Citations (1)
| Title |
|---|
| 孟新凌等: "1000MW超临界火电机组用WB36钢阀门研制", 《石油化工设备》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344011A (en) * | 2013-08-08 | 2015-02-11 | 北京斯维克阀门厂 | Bypass three-way valve of high-pressure heater |
| CN105202223A (en) * | 2015-09-17 | 2015-12-30 | 哈电集团哈尔滨电站阀门有限公司 | Hydraulic high-pressure heater three-way valve |
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Application publication date: 20130327 |