CN102518869B - Stop valve - Google Patents
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- Publication number
- CN102518869B CN102518869B CN 201110455658 CN201110455658A CN102518869B CN 102518869 B CN102518869 B CN 102518869B CN 201110455658 CN201110455658 CN 201110455658 CN 201110455658 A CN201110455658 A CN 201110455658A CN 102518869 B CN102518869 B CN 102518869B
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- Prior art keywords
- valve
- cooling liquid
- valve body
- described valve
- spool
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- Expired - Fee Related
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- 239000000110 cooling liquid Substances 0.000 claims abstract description 94
- 238000007789 sealing Methods 0.000 claims abstract description 39
- 239000012530 fluid Substances 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims description 39
- 241001149930 Protura <class> Species 0.000 claims description 14
- 239000011148 porous material Substances 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 3
- 229910000753 refractory alloy Inorganic materials 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 10
- 230000007246 mechanism Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 229920001973 fluoroelastomer Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The invention provides a stop valve, which comprises a valve body (1) and a valve spool (2). The valve body (1) comprises a valve cavity (101) and a sealing conical surface (102), a fluid inlet connecting nozzle (103) and a fluid outlet connecting nozzle (104) are arranged on the valve body (1), a cooling liquid inlet connecting nozzle (105) and a cooling liquid outlet connecting nozzle (106) are further disposed on the valve body (1), a first cooling liquid pipeline (107) is disposed in the valve body (1), a second cooling liquid pipeline (202) is disposed in the valve spool (2), and the cooling liquid inlet connecting nozzle (105), the first cooling liquid pipeline (107), the second cooling liquid pipeline (202) and the cooling liquid outlet connecting nozzle (106) are successively communicated. A cooling liquid loop is disposed in the valve body and the valve spool and can simultaneously cool the valve body, the valve spool and sealing surfaces of the valve body and the valve spool, so that a cooling effect of the stop valve is greatly strengthened, and the stop valve is applicable to working at higher work temperature.
Description
Technical field
The present invention relates to valve field, especially, relate to a kind of water-cooled superhigh temperature stop valve.
Background technique
Need to assemble stop valve in the pipe-line system of many high temperature fluids, because this stop valve is applied in hot environment, its various physical properties and mechanical property all will change, and cause high temperature break valve very strict aspect structural design and material selection.When the serviceability temperature of stop valve surpassed 450 ℃, stop valve easily occurred wriggling and fracture.At present, high temperature break valve is mainly to be made by resistant to elevated temperatures material, but when the Maximum operating temperature of using surpassed 730 ℃, this stop valve was no longer applicable.On the other hand, current high temperature break valve usually adopts valve body and stop valve to control actuator and designs separately, and focus on flap and sealing surface of seat cooling, ignored the cooling of plug sealing structure and valve control mechanism, this makes plug sealing structure easily lose efficacy, and the continuation transmission along with heat also easily threatens to valve control mechanism, makes it be difficult to competent higher operating temperature.
Summary of the invention
The object of the invention is to provide a kind of stop valve, meets with the spool that solves existing stop valve the technical problem that high temperature easily is out of shape, sealing effect weakens.
For achieving the above object, according to an aspect of the present invention, provide a kind of stop valve, comprise: valve body and spool, valve body comprises valve pocket and sealing cone, is provided with on valve body that fluid input connects mouth and fluid output connects mouth, and fluid input connects mouth and fluid output and connects mouth and be communicated with valve pocket respectively; Spool comprises the sealing conehead, and spool is arranged in valve pocket, and the sealing conehead is arranged on the sealing cone place movably, is sealed and matched between sealing conehead and sealing cone; Be provided with also on valve body that the cooling liquid entrance connects mouth and cooling liquid outlet connects mouth, be provided with the first cooling liquid pipeline in valve body, be provided with the second cooling liquid pipeline in spool, the cooling liquid entrance connects mouth, the first cooling liquid pipeline, the second cooling liquid pipeline and cooling liquid outlet and connects mouth and be communicated with successively.
Further, be provided with cooling liquid entrance and cooling liquid outlet on the perisporium of spool, the first cooling liquid pipeline and the second cooling liquid pipeline are communicated with by the cooling liquid entrance, and the second cooling liquid pipeline and cooling liquid outlet connect mouth and be communicated with by cooling liquid outlet.
Further, valve body is provided with the first seal ring and the second seal ring on the inwall between cooling liquid entrance and valve pocket, and the first seal ring and the second seal ring are metal o-ring.
Further, valve body also is provided with the first liquid collecting cavity, the second liquid collecting cavity and the 3rd liquid collecting cavity, the first liquid collecting cavity is arranged on the periphery of the first seal ring and the second seal ring, the second liquid collecting cavity is arranged on the position that the cooling liquid entrance is connected with valve body, and the 3rd liquid collecting cavity is arranged on cooling liquid outlet and connects between mouth and cooling liquid outlet.
Further, the second end of spool is provided with shoulder, and the space that valve body and spool and shoulder surround forms the first air cavity, is provided with the first pore on valve body and connects mouth, and the first pore connects mouth and is connected with the first air cavity; Stop valve also comprises valve gap, and the valve gap upper shield is in the end of valve body, and the space that surrounds between valve gap and spool forms the second air cavity, is provided with the second pore on valve gap and connects mouth, and the second pore connects mouth and is connected with the second air cavity.
Further, be provided with the 3rd seal ring on the valve interior wall between the second liquid collecting cavity and the 3rd liquid collecting cavity; Be provided with the 4th seal ring on valve interior wall between the 3rd liquid collecting cavity and the first air cavity; Be provided with the 5th seal ring on valve interior wall between the first air cavity and the second air cavity.
Further, valve body comprises valve seat and valve cylinder, and valve seat is fixedly connected with valve cylinder; Be provided with positioning boss and abacus on valve seat, valve cylinder and valve seat are by positioning boss and abacus orientation assemble.
Further, spool comprises valve head and valve rod, and valve head is fixedly connected with valve rod; Be provided with locating slot on valve rod, valve rod and valve head are by the locating slot orientation assemble.
Further, the inside of valve head is cavity, and the second end of valve rod is set to hollow pipeline, and the second end of valve rod extend in cavity, is provided with the gap between the second end periphery wall of valve rod and the inner circle wall of cavity; The hollow pipeline of the gap between the second end periphery wall of valve rod and the inner circle wall of cavity and the second end of valve rod consists of the second cooling liquid pipeline.
Further, valve seat, valve cylinder, valve head and valve rod use the whole cutting of refractory alloy to form; Valve seat and valve cylinder are fixedly connected by welding, and valve head and valve rod are fixedly connected by welding.
The present invention has following beneficial effect:
1, the present invention is provided with the loop of a cooling liquid in valve body and spool, can carry out simultaneously coolingly to valve body, spool and both sealing surfaces, like this, has greatly strengthened the cooling effect of stop valve, makes this stop valve be applicable to higher operating temperature.
2, the present invention is provided with three liquid collecting cavities between valve body and spool, and the cooling liquid flowing channel between these three liquid collecting cavities is relatively narrow and small, make under the condition that can guarantee the cooling liquid abundance, cooling liquid speed in stream is relatively high, can prevent the formation of slough like this, and strengthen the cooling heat transferring effect.
3, the orifice plate both sides pressure reduction between the first liquid collecting cavity and the second liquid collecting cavity can make cooling water evenly flow into second level liquid collecting cavity from surrounding, guarantees cooling uniformity; Position of opening is near wall, can further strengthen cooling to wall.
4, the second liquid collecting cavity and the 3rd liquid collecting cavity can be implemented cooling to spool, valve rod and valve cylinder when serving as spool cooling channel entrance, outlet, the sharply variation that prevents heat to be passed to valve cylinder top and cause the air chamber sealing configuration to lose efficacy and handled temperature degree, pressure is controlled to valve and is brought uncertainty.
5, stop valve of the present invention is provided with two air chamber between valve body and spool and valve gap, to pouring in these two air chamber or getting rid of pressurized gas, move up and down to promote spool, realize the switching of stop valve, make the control mechanism of stop valve simpler, and control operation is convenient simple and direct.
Except purpose described above, feature and advantage, the present invention also has other purpose, feature and advantage.The below is with reference to figure, and the present invention is further detailed explanation.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the cross section structure schematic diagram of the stop valve of the preferred embodiment of the present invention; And
Fig. 2 is the cross section structure schematic diagram of the valve seat of the preferred embodiment of the present invention;
Fig. 3 is the cross section structure schematic diagram of the spool of the preferred embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Referring to Fig. 1, stop valve of the present invention is mainly used in the high temperature fluid pipeline, the break-make of realization to high temperature fluid, this stop valve comprises: valve body 1 and spool 2 are provided with the high temperature fluid path in valve body 1, spool 2 is arranged in valve body 1, and spool 2 moves interior can the coming and going vertically of valve body 1.Be provided with sealing mechanism between spool 2 and valve body 1, when high temperature fluid is flowed through valve body 1 when interior, can make the high temperature fluid cut-off by spool 2 and engaging of valve body 1.
In conjunction with referring to Fig. 2 and Fig. 3, valve body 1 inside is provided with valve pocket 101 and sealing cone 102, be provided with on valve body 1 that fluid input connects mouth 103 and fluid output connects mouth 104, fluid input connects mouth 103 and fluid output and connects mouth 104 and be communicated with valve pocket 101 respectively, and namely fluid input connects mouth 103, valve pocket 101 and fluid output and connects mouth 104 and consist of the stream of high temperature fluids in this stop valve.The first end of spool 2 is provided with sealing conehead 201, and the first end of spool 2 is assemblied in valve pocket 101, and sealing conehead 201 is arranged on sealing cone 102 places movably, is sealed and matched between sealing conehead 201 and sealing cone 102.When needs cut-off high temperature fluid, will seal conehead 201 and move and both are fitted tightly near sealing cone 102, realize the fluid cut-off; When needs make high temperature fluid unimpeded, will seal conehead 201 and move away from sealing cone 102, realize that fluid is unimpeded.
Be provided with also on valve body 1 that the cooling liquid entrance connects mouth 105 and cooling liquid outlet connects mouth 106, be provided with the first cooling liquid pipeline 107 in valve body 1.Be provided with the second cooling liquid pipeline 202 in spool 2, the cooling liquid entrance connects mouth 105, the first cooling liquid pipeline 107, the second cooling liquid pipeline 202 and cooling liquid outlet and connects mouth 106 and be communicated with successively, consists of the cooling flowing path of this stop valve.The cooling liquid entrance connects mouth 105 and is arranged on connecing on the relative sidewall of mouth 104 with fluid output on valve body 1; The first cooling liquid pipeline 107 be arranged on valve pocket 101 and valve body 1 spool 2 installation cavitys around; The second cooling liquid pipeline 202 is arranged on the inside of spool 2.Preferably, the second cooling liquid pipeline 202 shape pipeline that is set to turn back in spool 2, namely the second cooling liquid pipeline 202 first flows to sealing conehead 201 places around the spool 2, then flows to cooling liquid outlet along the axis of spool 2 and connect mouth 106, forms a long narrow table font cooling flowing path.When having cooling liquid to flow through in this cooling flowing path, can implement effective cooling to this spool, prevent from losing efficacy because high temperature creep causes sealing surface.Simultaneously, spool wall cooling alleviated the threat that high temperature causes the first seal ring 11 and second seal ring 12 of contact with it.
Please refer to Fig. 3, preferably, be provided with cooling liquid entrance 203 and cooling liquid outlet 204 on the perisporium of spool 2, the first cooling liquid pipeline 107 and the second cooling liquid pipeline 202 are communicated with by cooling liquid entrance 203, and the second cooling liquid pipeline 202 and cooling liquid outlet connect mouth 106 and be communicated with by cooling liquid outlet 204.Be provided with the first seal ring 11 and the second seal ring 12, the first seal rings 11 and the second seal ring 12 on valve body 1 inwall between cooling liquid entrance 203 and valve pocket 101 and realize the sealing of high temperature fluid and cooling liquid, stop two kinds of liquid to interpenetrate.The first seal ring 11 contacts with high temperature fluid, is used for stoping high temperature fluid to spool 2 second end infiltrations, and the second seal ring 12 contacts with cooling liquid, is used for stoping cooling liquid to valve pocket 101 infiltrations.On valve body 1 inwall between cooling liquid entrance 203 and valve pocket 101, the two seals circle is set, makes the sealing effect between valve body 1 and spool 2 better; When the first seal ring 11 lost efficacy due to the impact that is subjected to high temperature fluid, high temperature fluid was penetrated between the first seal ring 11 and the second seal ring 12, and at this moment the second seal ring 12 then plays the effect of sealing high temperature fluid; Simultaneously, indirectly reduce the temperature of permeating the high temperature fluid of coming by the second seal ring 12 due to cooling liquid, make the thermal destruction effect of the high temperature fluid that this infiltration comes reduce widely, make like this this stop valve can not cause whole stop valve to lose efficacy because the first seal ring 11 loses efficacy.Preferably, the first seal ring 11 and the second seal ring 12 are metal o-ring, more elect bronze seal ring as, and the high-temperature resistant result of seal ring is better like this.
Preferably, also be provided with the first liquid collecting cavity 13, the second liquid collecting cavity 14 and the 3rd liquid collecting cavity 15 on valve body 1.The first liquid collecting cavity 13 is arranged on the periphery of the first seal ring 11 and the second seal ring 12, in this region gather cooling liquid, implement cooling to seal groove, the operating temperature of the first seal ring 11 and the second seal ring 12 be can effectively reduce, thereby sealing effect and the high-temperature resistance of the first seal ring 11 and the second seal ring 12 greatly strengthened.The second liquid collecting cavity 14 is arranged on the position that cooling liquid entrance 203 is connected with valve body 1, the 3rd liquid collecting cavity 15 is arranged on cooling liquid outlet and connects between mouth 106 and cooling liquid outlet 204, the second liquid collecting cavity 14 and the 3rd liquid collecting cavity 15 cool to valve body 1 and spool 2 step by step, and guarantee that the circulation of cooling liquid in the first cooling liquid pipeline 107 and the second cooling liquid pipeline 202 is smooth and easy.Preferably, be provided with the 3rd seal ring 18 on valve body 1 inwall between the second liquid collecting cavity 14 and the 3rd liquid collecting cavity 15, prevent that like this cooling liquid directly is penetrated in the 3rd liquid collecting cavity 15 and the second cooling liquid pipeline 202 of not flowing through from the second liquid collecting cavity 14, make the inside of spool 2 can not get cooling fully, the 3rd seal ring 18 is preferably fluororubber O shape circle.
Preferably, the second end of spool 2 is provided with shoulder 205, and space that valve body 1 and spool 2 and shoulder 205 surround forms the first air cavity 16, is provided with the first pore on valve body 1 and connects mouth 108, the first pores and connect mouth 108 and be communicated with the first air cavity 16.This stop valve also comprises valve gap 3, and valve gap 3 upper shields are in the end of valve body 1, and the space that surrounds between valve gap 3 and spool 2 forms the second air cavity 17, is provided with the second pore on valve gap 3 and connects mouth 301, the second pores and connect mouth 301 and be communicated with the second air cavity 17.When being filled with gas and during with the air scavenge in the second air cavity 17 in the first air cavity 16, shoulder 205 on spool 2 moves to valve gap 3 under the pressure difference effect of the first air cavity 16 and the second air cavity 17, and be with movable valve plug 2 to move to valve gap 3, realize that sealing conehead 201 separates with sealing cone 102; On the contrary, when be filled with gas and during with the air scavenge in the first air cavity 16, spool 2 moves to valve pocket 101 in the second air cavity 17 under the pressure difference effect of the second air cavity 17 and the first air cavity 16, realize that sealing conehead 201 contacts with sealing cone 102.Preferably, be provided with the 4th seal ring 19 on valve body 1 inwall between the 3rd liquid collecting cavity 15 and the first air cavity 16; Be provided with the 5th seal ring 20 on valve body 1 inwall between the first air cavity 16 and the second air cavity 17.The 4th seal ring 19 and the 5th seal ring 20 are realized the hermetic seal of the first air cavity 16 and the second air cavity 17, and the 4th seal ring 19 and the 5th seal ring 20 are preferably fluororubber O shape circle.
Please refer to Fig. 2, as other embodiment, valve body 1 comprises valve seat 4 and valve cylinder 5, and valve seat 4 is fixedly connected with valve cylinder 5; Be provided with positioning boss 41 and abacus 42 on valve seat 4, valve cylinder 5 and valve seat 4 are by positioning boss 41 and abacus 42 orientation assembles.Like this, valve body 1 is divided into valve seat 4 and valve cylinder 5 two-part, makes valve body 1 convenient when making, and particularly in the man-hour that adds of the internal structure of valve body 1, more time saving and energy saving, also more easily processing realizes accurately processing.Spool 2 comprises valve head 6 and valve rod 7, and valve head 6 is fixedly connected with valve rod 7; Be provided with locating slot 71 on valve rod 7, valve rod 7 passes through locating slot 71 orientation assembles with valve head 6.Like this, spool 2 is divided into valve head 6 and valve rod 7 two-part, makes the processing and fabricating of valve head 6 and valve rod 7 convenient easily.Preferably, valve seat 4, valve cylinder 5, valve head 6 and valve rod 7 use the whole cutting of refractory alloy to form, and valve seat 4 and valve cylinder 5 are fixedly connected by welding, and valve head 6 and valve rod 7 are fixedly connected by welding.Preferably, the inside of valve head 6 is cavity 61, and the second end of valve rod 7 is set to hollow pipeline, and the second end of valve rod 7 extend in cavity 61, is provided with the gap between the second end periphery wall of valve rod 7 and the inner circle wall of cavity 61; The hollow pipeline of the gap between the second end periphery wall of valve rod 7 and the inner circle wall of cavity 61 and the second end of valve rod 7 consists of the second cooling liquid pipeline 202.
The above is only the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. stop valve, comprise: valve body (1) and spool (2), described valve body (1) comprises valve pocket (101) and sealing cone (102), be provided with on described valve body (1) that fluid input connects mouth (103) and fluid output connects mouth (104), described fluid input connects mouth (103) and described fluid output and connects mouth (104) and be communicated with described valve pocket (101) respectively;
Described spool (2) comprises sealing conehead (201), described spool (2) is arranged in described valve pocket (101), described sealing conehead (201) is arranged on movably described sealing cone (102) and locates, and is sealed and matched between described sealing conehead (201) and described sealing cone (102);
It is characterized in that,
Be provided with also on described valve body (1) that the cooling liquid entrance connects mouth (105) and cooling liquid outlet connects mouth (106), be provided with the first cooling liquid pipeline (107) in described valve body (1), be provided with the second cooling liquid pipeline (202) in described spool (2), described cooling liquid entrance connects mouth (105), described the first cooling liquid pipeline (107), described the second cooling liquid pipeline (202) and described cooling liquid outlet and connects mouth (106) and be communicated with successively;
Be provided with cooling liquid entrance (203) and cooling liquid outlet (204) on the perisporium of described spool (2), described the first cooling liquid pipeline (107) and described the second cooling liquid pipeline (202) are communicated with by described cooling liquid entrance (203), and described the second cooling liquid pipeline (202) and described cooling liquid outlet connect mouth (106) and be communicated with by described cooling liquid outlet (204).
2. stop valve according to claim 1, is characterized in that,
Described valve body (1) is provided with the first seal ring (11) and the second seal ring (12) on the inwall between described cooling liquid entrance (203) and described valve pocket (101), described the first seal ring (11) and described the second seal ring (12) are metal o-ring.
3. stop valve according to claim 2, is characterized in that,
Described valve body (1) also is provided with the first liquid collecting cavity (13), the second liquid collecting cavity (14) and the 3rd liquid collecting cavity (15), described the first liquid collecting cavity (13) is arranged on the periphery of described the first seal ring (11) and described the second seal ring (12), described the second liquid collecting cavity (14) is arranged on the position that described cooling liquid entrance (203) is connected with described valve body (1), and described the 3rd liquid collecting cavity (15) is arranged on described cooling liquid outlet and connects between mouth (106) and described cooling liquid outlet (204).
4. stop valve according to claim 3, is characterized in that,
The second end of described spool (2) is provided with shoulder (205), the space that described valve body (1) and described spool (2) and described shoulder (205) surround forms the first air cavity (16), be provided with the first pore on described valve body (1) and connect mouth (108), described the first pore connects mouth (108) and is connected with described the first air cavity (16);
Described stop valve also comprises valve gap (3), described valve gap (3) upper shield is in the end of described valve body (1), the space that surrounds between described valve gap (3) and described spool (2) forms the second air cavity (17), be provided with the second pore on described valve gap (3) and connect mouth (301), described the second pore connects mouth (301) and is connected with described the second air cavity (17).
5. stop valve according to claim 4, is characterized in that,
Be provided with the 3rd seal ring (18) on described valve body (1) inwall between described the second liquid collecting cavity (14) and described the 3rd liquid collecting cavity (15);
Be provided with the 4th seal ring (19) on described valve body (1) inwall between described the 3rd liquid collecting cavity (15) and described the first air cavity (16);
Be provided with the 5th seal ring (20) on described valve body (1) inwall between described the first air cavity (16) and described the second air cavity (17).
6. stop valve according to claim 5, is characterized in that,
Described valve body (1) comprises valve seat (4) and valve cylinder (5), and described valve seat (4) is fixedly connected with described valve cylinder (5);
Be provided with positioning boss (41) and abacus (42) on described valve seat (4), described valve cylinder (5) and described valve seat (4) are by described positioning boss (41) and described abacus (42) orientation assemble.
7. stop valve according to claim 6, is characterized in that,
Described spool (2) comprises valve head (6) and valve rod (7), and described valve head (6) is fixedly connected with described valve rod (7);
Be provided with locating slot (71) on described valve rod (7), described valve rod (7) passes through described locating slot (71) orientation assemble with described valve head (6).
8. stop valve according to claim 7, is characterized in that,
The inside of described valve head (6) is cavity (61), the second end of described valve rod (7) is set to hollow pipeline, the second end of described valve rod (7) extend in described cavity (61), is provided with the gap between the second end periphery wall of described valve rod (7) and the inner circle wall of described cavity (61);
The hollow pipeline of the gap between the second end periphery wall of described valve rod (7) and the inner circle wall of described cavity (61) and the second end of described valve rod (7) consists of described the second cooling liquid pipeline (202).
9. stop valve according to claim 8, is characterized in that,
Described valve seat (4), described valve cylinder (5), described valve head (6) and described valve rod (7) use the whole cutting of refractory alloy to form;
Described valve seat (4) and described valve cylinder (5) are fixedly connected by welding, and described valve head (6) and described valve rod (7) are fixedly connected by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110455658 CN102518869B (en) | 2011-12-30 | 2011-12-30 | Stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110455658 CN102518869B (en) | 2011-12-30 | 2011-12-30 | Stop valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102518869A CN102518869A (en) | 2012-06-27 |
| CN102518869B true CN102518869B (en) | 2013-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110455658 Expired - Fee Related CN102518869B (en) | 2011-12-30 | 2011-12-30 | Stop valve |
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| Country | Link |
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| CN (1) | CN102518869B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279358B (en) * | 2013-07-08 | 2017-05-17 | 北京精密机电控制设备研究所 | High-temperature and high-pressure fuel gas safety valve |
| CN105370895A (en) * | 2015-09-15 | 2016-03-02 | 西峡龙成特种材料有限公司 | Opening and closing device for high-temperature and high-pressure dust-free gas pipeline |
| CN108386560B (en) * | 2018-04-03 | 2019-10-01 | 兰州理工大学 | A kind of heat-resisting anti-sticking hydraulic efficiency slide valve |
| CN111503279A (en) * | 2020-05-18 | 2020-08-07 | 湖北万测试验设备有限公司 | High-temperature-resistant switch valve device |
| CN111895115A (en) * | 2020-06-30 | 2020-11-06 | 北京精密机电控制设备研究所 | High-temperature cone valve with cooling structure |
| CN111878588B (en) * | 2020-07-20 | 2022-04-12 | 江苏中伟节能科技有限公司 | Stop valve suitable for high-temperature fluid |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144547A (en) * | 2007-10-11 | 2008-03-19 | 杨荣水 | Ultra-high temperature three-way adjusting butterfly valve |
| CN101608694A (en) * | 2009-07-20 | 2009-12-23 | 浙江石化阀门有限公司 | Ultra-temperature high-pressure stop valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62297674A (en) * | 1986-06-17 | 1987-12-24 | 松下精工株式会社 | Three-way valve for air conditioner |
| JP4542491B2 (en) * | 2005-09-29 | 2010-09-15 | 株式会社日立製作所 | High-strength heat-resistant cast steel, method for producing the same, and uses using the same |
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2011
- 2011-12-30 CN CN 201110455658 patent/CN102518869B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144547A (en) * | 2007-10-11 | 2008-03-19 | 杨荣水 | Ultra-high temperature three-way adjusting butterfly valve |
| CN101608694A (en) * | 2009-07-20 | 2009-12-23 | 浙江石化阀门有限公司 | Ultra-temperature high-pressure stop valve |
Non-Patent Citations (1)
| Title |
|---|
| JP昭62-297674A 1987.12.24 |
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| CN102518869A (en) | 2012-06-27 |
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