CN201715068U - High-temperature and high-pressure Y-shaped stop valve - Google Patents
High-temperature and high-pressure Y-shaped stop valve Download PDFInfo
- Publication number
- CN201715068U CN201715068U CN2009202221198U CN200920222119U CN201715068U CN 201715068 U CN201715068 U CN 201715068U CN 2009202221198 U CN2009202221198 U CN 2009202221198U CN 200920222119 U CN200920222119 U CN 200920222119U CN 201715068 U CN201715068 U CN 201715068U
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Abstract
The utility model provides a high-temperature and high-pressure Y-shaped stop valve; a valve seat in a valve body is matched with a valve clack for realizing opening and closing of the valve; a transmission device is mounted on a valve support; a stainless steel metal layer is arranged in a middle port of the valve body by overlaying welding; an elastic metal seal ring is arranged between the valve body and a packing box; the elastic metal seal ring is sequentially compressed by a pressure ring and a pendant collet for forming a middle port sealing structure; the valve clack and a piston of a valve core are connected into a whole, and guide ribs are uniformly distributed on the inner wall which is matched with the piston of the valve core of the valve body; and a flow passage of the valve body adopts a low-flow resistance streamlined design. The stop valve has the advantages of reliable sealing, long service life, reasonable structure and flexible operation, and can realize small flow resistance and fast opening and closing and be applicable to various high-temperature and high-pressure pipelines, such as hydrogen, high-temperature water, superheated steam and the like, in particular to the high-temperature and high-pressure pipelines for large ethylene devices.
Description
Technical field the utility model belongs to the machinery valve technical field, relates in particular to a kind of Y type stop valve that is applied on high temperature, the high pressure pipe line.
Background technique is at large-scale ethylene plant, its main medium is: hydrogen, ethylene gas, superheated vapor etc., use is on this pipeline that relates to high temperature, high pressure, the deficiency that existing stop valve exists is: mouthful sealing is unreliable in the valve, flap does not have guiding influences sealability, the passage flow resistance is big, and in addition, the working life of valve seat, flap sealing surface is short.
The summary of the invention the purpose of this utility model is to provide the High Temperature High Pressure Y type stop valve that a kind of middle mouthful of sealing is reliable, can realize little flow resistance, fast opening and closing.
For achieving the above object, the technological scheme taked of the utility model is:
A kind of High Temperature High Pressure Y type stop valve, valve seat in the valve body cooperates the keying that realizes valve with flap, transmission device is installed on the valve rack, middle mouthful of place's built-up welding stainless steel metal layer at valve body, between valve body and Stuffing box, be provided with the elastic metallic seal ring, the elastic metallic seal ring is compressed by pressure ring, pendant collet successively, mouthful sealing configuration in the formation; Flap and valve core piston are connected as a single entity, uniform guiding rib on valve body and the inwall that valve core piston cooperates; Valve flowing channel is streamlined for low flow resistance.
Described valve seat, flap sealing surface adopt STL21
#The Co-Cr-W cemented carbide.
Described valve body material is selected ASTM A217 WC6, WC9 Cr-Mo High tem perature steel or ASTM A351CF8C high-temperature heat-resistance stainless steel for use.
Also be provided with guide rail on the described valve rack, rotation-preventing mechanism is installed on the guide rail.
The above-mentioned High Temperature High Pressure Y type stop valve that the utility model provides because mouth adopts metallic seal in the valve, and relies on elastic metallic seal ring resiliently deformable to realize sealing, has solved the sealing problem of mouth in high temperature, the high pressure valve body effectively.On valve body and the inwall that valve core piston cooperates the guiding rib with leading role is set, eliminated misalign, the problem of bite and valve rod bending, make valve seal more reliable, and solved that external similar valve adopts that whole guide sleeve makes that valve flowing channel is not communicated with valve lumen medium, valve opening and closing problem slowly.Valve flowing channel has very high flow coefficient for low flow resistance airflow design, can reduce the pressure drop by system to greatest extent, thereby realize little flow resistance, fast opening and closing.
Description of drawings Fig. 1 is the structural representation of High Temperature High Pressure Y type stop valve;
Fig. 2 is the A-A generalized section of Fig. 1;
Fig. 3 is that High Temperature High Pressure Y type is by the valve middle port sealed structural representation.
Among the figure: the 1-valve body; The 2-flap; The 3-valve core piston; The 4-valve rod; The 5-Stuffing box; 6-elastic metallic seal ring; The 7-pressure ring; The 8-pendant collet; The 9-pressing plate; The 10-support; The 11-transmission device; The 12-rotation-preventing mechanism; 13-built-up welding stainless steel metal layer.
Embodiment as shown in Figure 1 and Figure 2, among the High Temperature High Pressure Y type stop valve embodiment that the utility model provides, when opening and closing, valve rod 4 drives flap 2 and moves up and down, flap 2 is connected as a single entity with valve core piston 3, valve core piston 3 keeps contacting with uniform three guiding rib continuitys on the valve body 1 in the whole process of valve operation, has eliminated misaligning, the problem of bite and valve rod bending.Valve seat, flap 2 sealing surfaces adopt STL21
#The Co-Cr-W cemented carbide, STL21
#The Co-Cr-W cemented carbide has pliability and the strong characteristics of shock-resistant ability, has prolonged the working life of valve.Flap 2 has the function of automatic centering, when valve seat has a bit had major injury at certain, can be in operation original state is repaired and be ground to valve seat, and flap 2 seals more reliably when closing, and has improved the working life of valve under high temperature, high-pressure system.Valve body material is selected ASTM A217 WC6, WC9 Cr-Mo High tem perature steel or ASTM A351 CF8C high-temperature heat-resistance stainless steel for use, satisfies the high-temperature behavior and the high strength requirement of valve.The runner of valve body 1 has very high flow coefficient for low flow resistance design, can reduce the pressure drop by system to greatest extent, thereby realize little flow resistance.Valve rack 10 loading and unloading are convenient to the installation of transmission device 11 easily.On support 10, also design guide rail, rotation-preventing mechanism 12 is installed on the guide rail, opening, when closing, making 4 of valve rods do upper and lower motion, and be not rotated motion, thereby reach good sealing.
As Fig. 1, shown in Figure 3, the stainless steel metal layer 13 that has anti-electrocorrosion and antirust effect in middle mouthful place's built-up welding of valve body 1, and between valve body 1 and Stuffing box 5, being provided with elastic metallic seal ring 6, elastic metallic seal ring 6 is compressed by pressure ring 7, pendant collet 8 successively, mouthful sealing in the formation.After valve assembles, elastic metallic seal ring 6 is under the ordering about of manifold pressure, make its resiliently deformable near between Stuffing box 5 and the valve body 1, and the trend that upwards moves arranged, there is pressure ring 7 to compress on the elastic metallic seal ring 6 at this moment, pressure ring 7 is compressed by pendant collet 8, thereby mouth seals in reaching, and has solved the sealing problem of mouth in high temperature, the high pressure valve body reliably.
Through evidence: the utility model is rational in infrastructure, and flexible operation can be suitable for (GB: PN 32.0MPa; The pound level: CL1500～2500, DN 50～500, material: WC6, WC9, CF8C; Medium is: hydrogen, high-temperature water, superheated vapor etc.) on the high temperature, pressure duct, the WC9 operating temperature reaches as high as 570 ℃, and the CF8C operating temperature can reach 650 ℃.Long service life, safe and reliable.
Above-described only is preferred embodiment of the present utility model.Should be understood that those of ordinary skill, under technology enlightenment provided by the utility model, can also make other equivalent modifications and improvement, also should be considered as protection domain of the present utility model for valve technology field.
Claims (4)
1. High Temperature High Pressure Y type stop valve, valve seat in the valve body cooperates the keying that realizes valve with flap, transmission device is installed on the valve rack, it is characterized in that: at middle mouthful of place's built-up welding stainless steel metal layer of valve body, between valve body and Stuffing box, be provided with the elastic metallic seal ring, the elastic metallic seal ring is compressed by pressure ring, pendant collet successively, mouthful sealing configuration in the formation; Flap and valve core piston are connected as a single entity, uniform guiding rib on valve body and the inwall that valve core piston cooperates; Valve flowing channel is streamlined for low flow resistance.
2. High Temperature High Pressure Y type stop valve according to claim 1 is characterized in that: described valve seat, flap sealing surface adopt STL21
#The Co-Cr-W cemented carbide.
3. High Temperature High Pressure Y type stop valve according to claim 1 is characterized in that: described valve body material is selected ASTM A217 WC6, WC9 Cr-Mo High tem perature steel or ASTM A351 CF8C high-temperature heat-resistance stainless steel for use.
4. High Temperature High Pressure Y type stop valve according to claim 1 is characterized in that: also be provided with guide rail on the described valve rack, rotation-preventing mechanism is installed on the guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202221198U CN201715068U (en) | 2009-12-14 | 2009-12-14 | High-temperature and high-pressure Y-shaped stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202221198U CN201715068U (en) | 2009-12-14 | 2009-12-14 | High-temperature and high-pressure Y-shaped stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201715068U true CN201715068U (en) | 2011-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202221198U Expired - Fee Related CN201715068U (en) | 2009-12-14 | 2009-12-14 | High-temperature and high-pressure Y-shaped stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201715068U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398201A (en) * | 2013-08-20 | 2013-11-20 | 南通国电电站阀门有限公司 | High-temperature and high-pressure stop valve with Y-shaped threaded connection valve body |
| CN103411002A (en) * | 2013-08-07 | 2013-11-27 | 兰州高压阀门有限公司 | Tilting-disc impact-free check valve |
| CN103411013A (en) * | 2013-07-16 | 2013-11-27 | 鞍山电磁阀有限责任公司 | Condensed water two-position two-way directly operated type electromagnetic valve |
| CN107023684A (en) * | 2016-01-22 | 2017-08-08 | 株式会社富士金 | Y-valve |
| CN112610742A (en) * | 2020-12-02 | 2021-04-06 | 山东齐鲁电机制造有限公司 | High-pressure main steam valve of steam turbine |
-
2009
- 2009-12-14 CN CN2009202221198U patent/CN201715068U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411013A (en) * | 2013-07-16 | 2013-11-27 | 鞍山电磁阀有限责任公司 | Condensed water two-position two-way directly operated type electromagnetic valve |
| CN103411002A (en) * | 2013-08-07 | 2013-11-27 | 兰州高压阀门有限公司 | Tilting-disc impact-free check valve |
| CN103411002B (en) * | 2013-08-07 | 2015-09-09 | 兰州高压阀门有限公司 | Oblique flap-type is without shock safety check |
| CN103398201A (en) * | 2013-08-20 | 2013-11-20 | 南通国电电站阀门有限公司 | High-temperature and high-pressure stop valve with Y-shaped threaded connection valve body |
| CN103398201B (en) * | 2013-08-20 | 2016-08-10 | 南通国电电站阀门有限公司 | Y shape valve body screw thread connects high temperature and high pressure cut-off valve |
| CN107023684A (en) * | 2016-01-22 | 2017-08-08 | 株式会社富士金 | Y-valve |
| CN107023684B (en) * | 2016-01-22 | 2019-08-20 | 株式会社富士金 | Y-valve |
| CN112610742A (en) * | 2020-12-02 | 2021-04-06 | 山东齐鲁电机制造有限公司 | High-pressure main steam valve of steam turbine |
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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: 20110119 Termination date: 20171214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |