CN102865430A - Valve system - Google Patents
Valve system Download PDFInfo
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- CN102865430A CN102865430A CN2012103582556A CN201210358255A CN102865430A CN 102865430 A CN102865430 A CN 102865430A CN 2012103582556 A CN2012103582556 A CN 2012103582556A CN 201210358255 A CN201210358255 A CN 201210358255A CN 102865430 A CN102865430 A CN 102865430A
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- valve
- air door
- switch valve
- ventilation door
- valve system
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- Multiple-Way Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention provides a valve system which comprises a switch valve and a ventilation door. The switch valve and the ventilation door are sequentially disposed and matched with each other. The switch valve is located on a pipeline at the front end of the ventilation door. The switch valve comprises an electromagnetic valve, an electromagnetic actuating mechanism and a manual actuating mechanism. The ventilation door comprises a signal positioner and a manual actuating mechanism. The valve system has the advantages that the valve system is adaptive to high-temperature operations, the valve system is applicable to large pipelines, construction cost can be lowered greatly by the aid of the combination valve technique of the ventilation door plus switch valve compared with the butterfly valves, and advantages of the ventilation door and the butterfly valves are maintained while defects of the ventilation door and the butterfly valves are overcome.
Description
Technical field
The present invention relates to a kind of valving of petrochemical industry, refer to especially the selection of high-temperature pipe valve in a kind of chemical process.
Background technique
In present petrochemical equipment, more and more meticulousr to the control of pipeline flow, but for large pipeline, the High temperature valve type selecting still is difficult problem that is difficult to go beyond of a petrochemical field.
At present, for bigbore modulating valve, usually have two kinds, one is air door, and one is butterfly valve.The air door wide adaptability, under the special high-temperature condition, advantage is particularly outstanding.High temperature butterfly valve is not only expensive, and stuck problem occurs easily.And these problems can not occur in air door, reveal relatively large shortcoming but air door exists, and the fluid of petrochemical industry pipeline require usually valve to have high leakage-preventing performance.
In view of above several problems, a kind of new invention effective, a kind of valve system that Safety performance is high is imperative.
Summary of the invention
The technical problem to be solved in the present invention mainly is: be used for the difficulty that chemical process high-temperature pipe valve is selected.That is, the present technique invention mainly solves the problem of the large valve selection of high temperature.
In order to achieve the above object, the invention provides a kind of valve system, it comprises
A kind of valve system, it comprises switch valve and the air door of the order setting that cooperatively interacts, described switch valve is positioned on the pipeline of air door front end.
Described switch valve also comprises solenoid valve, electromagnetic actuator and manual actuating device.
Described air door also comprises signal positioning work piece and manual execution architecture.
The invention has the beneficial effects as follows:
1, has simultaneously the characteristics that can adapt to high-temperature operation.
2, be adapted to large pipeline, the relatively-high temperature butterfly valve, the combined valve technology of air door+switch valve can significantly reduce construction cost.
3, this combined valve has the advantage of air door and butterfly valve simultaneously, avoids its shortcoming.
Description of drawings
To the description of embodiments of the invention in conjunction with its accompanying drawing, can further understand purpose, specific structural features and the advantage of its invention by following.Wherein, accompanying drawing is:
Fig. 1 is the assembling schematic representation of valve system of the present invention.
Embodiment
The present invention is applied in petrochemical industry, refers to especially a kind of selection that is mainly used in high-temperature pipe valve in the chemical process.Be the significant improvement of making to the basis of existing high-temperature pipe valve, have very important practice significance.
Present technique is mainly used in the difficulty that the high-temperature pipe valve is selected in the chemical process.In present petrochemical equipment, more and more meticulousr to the control of pipeline flow, but for large pipeline, the High temperature valve type selecting still is difficult problem that is difficult to go beyond of a petrochemical field.The present technique invention mainly solves the problem of the large valve selection of high temperature.
For bigbore modulating valve, usually there are two kinds, one is air door, one is butterfly valve.The air door wide adaptability, under the special high-temperature condition, advantage is particularly outstanding.High temperature butterfly valve is not only expensive, and stuck problem occurs easily.And these problems can not occur in air door, reveal relatively large shortcoming but air door exists, and the fluid of petrochemical industry pipeline require usually valve to have high leakage-preventing performance.
Followingly will carry out detailed comparison to air door and butterfly valve at aspect of performance and describe: aspect weight, air door: more heavy unit weight hot is lighter, and butterfly valve more heavy unit weight hot is heavier; Aspect production method, air door: coldly do, weld, short according to the customer demand customization friendship phase; Butterfly valve is then cast, turnning and milling processing, and small-bore is a large amount of the manufacturing, and heavy caliber needs the order production friendship phase more of a specified duration; Aspect pattern, air door: circular and squarely all can customized blade quantity can adopt single blade, multiple-blade (can divide parallel leaf and oppositely industry design) according to caliber and purposes, then only circle and single blade can be selected central-axis type for selecting according to condition to butterfly valve, double eccentric-pieces, the three eccentric design; Aspect pressure design, air door is applicable to the following gaseous fluid of 0.5kg/cm2, and butterfly valve then is only applicable to make more than the 1kg/cm2 steam or liquid; Aspect temperature design, air door is applicable to various temperature, and high temperature design can reach 1000 ℃, and then too the environment of high temperature is inapplicable for butterfly valve, and spool is easily stuck, can't switch; Aspect tightness, air door: leak-down rate can change according to operation pressure, and it is comparatively unfavorable to use in the high condition of design pressure.Test mode is according to the testing of AMCA criterion, and test result is actual leakage rate, without dividing of Class grade; Butterfly valve is Class I according to ANSI/FCI 70-2-1976 standard then, II, and III, IV, V, 6 grades such as VI, test condition are all different; At linear controlling party face, single blade design of air door is identical with butterfly valve, and the multiple-blade design can relatively be tending towards linearity control; And the characteristic of single blade design of butterfly valve needs to select the control of Quick Open or Equal Percent to revise linearity at controller; In the torsion demand side, the torsion demand of air door is lower, and butterfly valve is then higher to the torsion demand.
Can see that by foregoing the air door using scope is wide, cheap, but reveal easily, the butterfly valve amount of leakage is little, but heavy, and high temperature produces distortion easily.In view of long-term operating practice, the invention switch valve that leakage rate is less also is applied in the pipeline valve system, adopts the mode of air door+switch valve combination to form a kind of new valve system.
The present invention adopts air door to add the combined valve form of switch valve, has solved above-mentioned drawback, has both taken into account the flexibility of air door, avoids again its property revealed, and large pipeline control provides truly feasible scheme in the petrochemical industry in order to solve.
Followingly will describe with specific embodiment structure and the function of valve system of the present invention in detail.
As shown in Figure 1, the high temperature fluid that flows in the high-temperature pipe in chemical process mainly is high-temperature gas, at first passes through switch valve, and the switch valve high-temperature resistance is strong, although can only master control open or close, its leakage rate is little.In addition, switch valve comprises that also collocation is chain, with and the solenoid valve carried out of upper end cooperating, electromagnetic actuator and manual actuating device.And, the other instrument wind that also is provided with of solenoid valve.After carrying out the switch valve opening operation, high-temperature gas further enters the air door of the control function with pipeline flow through switch valve, air door is under high-temperature condition, advantage is particularly outstanding, be difficult for stuck, and aspect pattern, can have circular and square all can customized blade quantity, can adopt the various ways such as single blade, multiple-blade (can divide parallel leaf and oppositely industry design) according to caliber and purposes, and in order to cooperate with switch valve, the control of further meticulous pipeline flow, this air door also comprise signal positioning work piece and manual execution architecture.
In sum, valve system of the present invention has the characteristics that can adapt to high-temperature operation simultaneously; Be adapted to large pipeline, the relatively-high temperature butterfly valve, the combined valve technology of air door+switch valve can significantly reduce construction cost; This combined valve has the advantage of air door and butterfly valve simultaneously, avoids its shortcoming.
The description of above preferred embodiment makes those skilled in the art can make or use the present invention.These embodiments' various modifications are apparent for a person skilled in the art, and the General Principle of definition can be applied to not deviating among other embodiment the spirit or scope of the present invention here.Therefore, the present invention is not limited to shown here embodiment, and will meet the most wide in range scope consistent with the principle that discloses and novel feature here.
Claims (3)
1. valve system, it comprises switch valve and air door that the order that cooperatively interacts arranges, described switch valve is positioned on the pipeline of air door front end.
2. valve system according to claim 1 is characterized in that: described switch valve also comprises solenoid valve, electromagnetic actuator and manual actuating device.
3. valve system according to claim 1 is characterized in that: described air door also comprises signal positioning work piece and manual execution architecture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103582556A CN102865430A (en) | 2012-09-21 | 2012-09-21 | Valve system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103582556A CN102865430A (en) | 2012-09-21 | 2012-09-21 | Valve system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102865430A true CN102865430A (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103582556A Pending CN102865430A (en) | 2012-09-21 | 2012-09-21 | Valve system |
Country Status (1)
| Country | Link |
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| CN (1) | CN102865430A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19630866A1 (en) * | 1996-07-31 | 1998-02-05 | Pierburg Ag | Arrangement of non-return valve in gas pipe of internal combustion engines |
| CN2310250Y (en) * | 1997-09-12 | 1999-03-10 | 刘全喜 | Right angle cutting off round damper |
| CN2366755Y (en) * | 1999-03-26 | 2000-03-01 | 陈晓 | Multiple channel type domestic ventilation machine |
| CN2416417Y (en) * | 1999-10-08 | 2001-01-24 | 顾建军 | Induced draft fan |
| CN2481978Y (en) * | 2001-06-19 | 2002-03-13 | 浙江帅康电气股份有限公司 | Flareback protection device |
| DE3932300C2 (en) * | 1989-09-28 | 2003-03-06 | Siemens Ag | throttle body |
| CN1991252A (en) * | 2005-12-26 | 2007-07-04 | 徐志明 | Energy-saving gas kitchen range |
| CN202901686U (en) * | 2012-09-21 | 2013-04-24 | 上海凯鸿环保工程有限公司 | Valve device |
-
2012
- 2012-09-21 CN CN2012103582556A patent/CN102865430A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3932300C2 (en) * | 1989-09-28 | 2003-03-06 | Siemens Ag | throttle body |
| DE19630866A1 (en) * | 1996-07-31 | 1998-02-05 | Pierburg Ag | Arrangement of non-return valve in gas pipe of internal combustion engines |
| CN2310250Y (en) * | 1997-09-12 | 1999-03-10 | 刘全喜 | Right angle cutting off round damper |
| CN2366755Y (en) * | 1999-03-26 | 2000-03-01 | 陈晓 | Multiple channel type domestic ventilation machine |
| CN2416417Y (en) * | 1999-10-08 | 2001-01-24 | 顾建军 | Induced draft fan |
| CN2481978Y (en) * | 2001-06-19 | 2002-03-13 | 浙江帅康电气股份有限公司 | Flareback protection device |
| CN1991252A (en) * | 2005-12-26 | 2007-07-04 | 徐志明 | Energy-saving gas kitchen range |
| CN202901686U (en) * | 2012-09-21 | 2013-04-24 | 上海凯鸿环保工程有限公司 | Valve device |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130109 |