CN202901686U - Valve device - Google Patents
Valve device Download PDFInfo
- Publication number
- CN202901686U CN202901686U CN201220490524.XU CN201220490524U CN202901686U CN 202901686 U CN202901686 U CN 202901686U CN 201220490524 U CN201220490524 U CN 201220490524U CN 202901686 U CN202901686 U CN 202901686U
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- China
- Prior art keywords
- valve
- air door
- switch valve
- utility
- butterfly valve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Multiple-Way Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The utility model provides a valve device. The valve device comprises a switch valve and an air door, wherein the switch valve and the air door are matched mutually and sequentially arranged. The switch valve is arranged on a pipeline at the front end of the air door and further comprises a magnetic valve, an electromagnetic actuation mechanism and a manual actuation mechanism, and the air door further comprises a signal locator and a manual actuation mechanism. The valve device has the advantages of being suitable for high temperature operation and large pipelines, compared with a high temperature butterfly valve, the combined valve technology of the air door and the switch valve enables manufacturing cost to be reduced greatly, and in addition, the combined valve device has advantages of the air door and the butterfly valve, and avoids disadvantages of the air door and the butterfly valve.
Description
Technical field
The utility model relates to a kind of valving of petrochemical industry, refers 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 easily occurs.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 model utility effective, a kind of valving that Safety performance is high is imperative.
The model utility content
The technical problems to be solved in the utility model mainly is: be used for the difficulty that chemical process high-temperature pipe valve is selected.That is, the present technique model utility mainly solves the problem of the large valve selection of high temperature.
In order to achieve the above object, the utility model provides a kind of valving, and it comprises
A kind of valving, 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 beneficial effects of the utility model are:
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 advantages of air door and butterfly valve simultaneously, avoids its shortcoming.
Description of drawings
To the description of embodiment of the present utility model in conjunction with its accompanying drawing, can further understand its practical novel purpose, specific structural features and advantage by following.Wherein, accompanying drawing is:
Fig. 1 is the assembling schematic diagram of the utility model valving.
Embodiment
The utility model is to be 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 model utility 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 easily occurs.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 C1ass 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 by foregoing, the air door using scope is wide, and is cheap, but easily reveals, and the butterfly valve amount of leakage is little, but heavy, and high temperature easily produces distortion.In view of long-term operating practice, the switch valve that the utility model creativeness is less with leakage rate also is applied in the pipeline valve device, adopts the mode of air door+switch valve combination to form a kind of new valving.
The utility model 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 the utility model valving 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, the utility model valving 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 advantages 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 utility model.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 spirit or scope of the present utility model here.Therefore, the utility model 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. valving, 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. valving according to claim 1 is characterized in that: described switch valve also comprises solenoid valve, electromagnetic actuator and manual actuating device.
3. valving 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 |
|---|---|---|---|
| CN201220490524.XU CN202901686U (en) | 2012-09-21 | 2012-09-21 | Valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220490524.XU CN202901686U (en) | 2012-09-21 | 2012-09-21 | Valve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202901686U true CN202901686U (en) | 2013-04-24 |
Family
ID=48122357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220490524.XU Expired - Lifetime CN202901686U (en) | 2012-09-21 | 2012-09-21 | Valve device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202901686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865430A (en) * | 2012-09-21 | 2013-01-09 | 上海凯鸿环保工程有限公司 | Valve system |
-
2012
- 2012-09-21 CN CN201220490524.XU patent/CN202901686U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865430A (en) * | 2012-09-21 | 2013-01-09 | 上海凯鸿环保工程有限公司 | Valve system |
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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 |
Granted publication date: 20130424 |
|
| CX01 | Expiry of patent term |