CN204114472U - A kind of air separation column tower plastic valve anti-race cold structure - Google Patents
A kind of air separation column tower plastic valve anti-race cold structure Download PDFInfo
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- CN204114472U CN204114472U CN201420492792.4U CN201420492792U CN204114472U CN 204114472 U CN204114472 U CN 204114472U CN 201420492792 U CN201420492792 U CN 201420492792U CN 204114472 U CN204114472 U CN 204114472U
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Abstract
The utility model relates to a kind of air separation column tower plastic valve anti-race cold structure, comprise valve heat insulation cylinder, rubber valve pocket, valve rod collet and be fixed on the valve rod big disk on valve rod collet surface by valve rod flange, valve heat insulation cylinder is set in valve rod collet outer surface, space between valve heat insulation cylinder and valve rod collet forms the first thermal-protective coating, also comprise internal baffle and exterior siding, valve rod big disk is arranged between internal baffle and exterior siding, its both ends of the surface respectively with described in, exterior siding end face is parallel, space between internal baffle and the first thermal-protective coating forms the second thermal-protective coating, internal baffle, space between exterior siding and collet forms the 3rd thermal-protective coating, first, second, insulation medium is equipped with in 3rd thermal-protective coating.Fundamentally solving the cold problem of race of air separation column tower skin cryogenic liquide valve, ensure that the stability of air separation facility process adjustments, also solving the problem of a series of other sides such as the potential safety hazard brought because running cold junction frost and cold consumption simultaneously.
Description
Technical field
The utility model relates to a kind of air separation column tower plastic valve anti-race cold structure, belongs to oxygen production equipment technical field.
Background technique
Air separation column produces the key equipment of oxygen as cryogenic refrigeration method, has suitable strict demand to the Insulation of equipment.Once occur that cold leaks, not only bring great potential safety hazard, also make equipment energy consumption increase.The reason causing cold to reveal has multiple, and as air separation column tower skin cryogenic liquide valve, particularly pneumatic control valve door sealing is bad, produces and runs cold phenomenon, can cause valve jam, affect regulating working conditions, causes operating mode unstable; Moreover for ease of maintenance dismounting and consider the factors such as valve is stressed, on general tower during cryogenic liquide valve installation and horizontal plane have the inclination angle of about 15 °, when the rubber case season cracking of heat insulation nozzle, easily cause rainwater to pour into, insulation failure, producing freezes runs cold phenomenon; In addition, also have some valves when mounted in heat insulation cylinder slag wool packlessly cause steam to enter, gather, thus cause slag wool in heat insulation cylinder to make moist, finally also producing freezes runs cold phenomenon.
The tower skin cryogenic liquide valve of current oxyen manutactory air separation plant runs cold problem and fails effectively to be solved always.The cold problem of race of tower skin cryogenic liquide valve is solved now in the urgent need to a kind of simple, economic, practical, efficient and methods that are that can treat both principal and secondary aspect of disease.
Model utility content
Technical problem to be solved in the utility model is, overcomes the shortcoming of prior art, provides that a kind of structure is simple, economical and practical, with low cost, consumptive material is less and the air separation column tower skin cryogenic liquide anti-race low temperature valve door device that heat insulation effect is good.
In order to solve above technical problem, the utility model provides a kind of air separation column tower plastic valve anti-race cold structure, comprise valve heat insulation cylinder, rubber valve pocket, valve rod collet and be fixed on the valve rod big disk on valve rod collet surface by valve rod flange, described valve heat insulation cylinder is set in described valve rod collet outer surface, space between described valve heat insulation cylinder and described valve rod collet forms the first thermal-protective coating, it is characterized in that: also comprise internal baffle and exterior siding, described valve rod big disk is arranged between internal baffle and exterior siding, its both ends of the surface respectively with described in, exterior siding end face is parallel, space between described internal baffle and the first thermal-protective coating forms the second thermal-protective coating, described internal baffle, space between exterior siding and collet forms the 3rd thermal-protective coating, described first, second, insulation medium is equipped with in 3rd thermal-protective coating.
The technological scheme that the utility model limits further is:
Further, described internal baffle, valve rod big disk, exterior siding are sequentially sleeved on valve heat insulation cylinder and put.
Further, described inside and outside baffle plate is ring baffle, and the difference of the external diameter of its inner ring diameter and described valve rod flange is 5 ~ 10mm, and the difference of the internal diameter of described valve heat insulation cylinder and the race diameter of described inside and outside baffle plate is 1 ~ 2mm.
Further, described first thermal-protective coating is 1 ~ 2cm to the distance at the valve rod big disk back side, and namely the width of the second thermal-protective coating is 1 ~ 2cm, so that the installation of internal baffle.
Further, the insulation medium in described first thermal-protective coating is slag wool.
Further, the insulation medium in described second thermal-protective coating is stabilizer, and the insulation medium in described 3rd thermal-protective coating is slag wool or stabilizer and their combination.
Further, the rainproof sealing being arranged on valve heat insulation cylinder tube port position is also comprised, as rubber valve pocket or waterproof cloth.Described rubber valve pocket is arranged on valve heat insulation cylinder tube port position.
Further, described inside and outside baffle plate evenly offers small through hole.Stabilizer can be squeezed in thermal-protective coating by small through hole.
Further, described inside and outside baffle plate adopts thickness to be the asbestos slate of 2 ~ 3mm.
The beneficial effects of the utility model are: the utility model has the following advantages: easy and simple to handle, more easily promote; With low cost, consumptive material is less; Put things right once and for all, once solve, be benefited all the life, except valve maintenance, without the need to repeating again.Fundamentally solving the cold problem of race of air separation column tower skin cryogenic liquide valve, ensure that the stability of air separation facility process adjustments, also solving the problem of a series of other sides such as the potential safety hazard brought because running cold junction frost and cold consumption simultaneously.
Accompanying drawing explanation
Below in conjunction with embodiment, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model, and in figure, A is the structure sectional view of baffle plate.
Embodiment
embodiment 1
A kind of air separation column tower plastic valve anti-race cold structure that the present embodiment provides, as shown in Figure 1: comprise valve heat insulation cylinder 2, rubber valve pocket 8, internal baffle 5, exterior siding 6, valve rod collet 7 and be fixed on the valve rod big disk 10 on valve rod collet surface by valve rod flange 9, valve heat insulation cylinder 2 is set in valve rod collet 7 outer surface, space between valve heat insulation cylinder 2 and valve rod collet 7 forms the first thermal-protective coating 1, internal baffle 5, exterior siding 6 is parallel is fixedly mounted on valve rod big disk 10 surface, space between internal baffle 5 and first thermal-protective coating 1 forms the second thermal-protective coating 3, the 3rd thermal-protective coating 4 that space between internal baffle 5 and exterior siding 6 is formed.
Concrete implementing measure is as follows:
1. find out and run low temperature valve door, heat insulation nozzle rubber valve cover is removed.
2. blanket gas in tower is closed, if blanket gas is not closed, directly will have influence on the effect of scheme implementation below.
3. the slag wool made moist in heat insulation cylinder or freeze is cleaned out.
4. in the first thermal-protective coating 1 of heat insulation cylinder 2, load dry clean slag wool and real with instrument plug, especially around heat insulation cylinder inner tube wall and valve rod collet 7, because metallic material heat-conducting property is better, to easily cause water in air vapour to condense if metal surface filling is unreal, very easily produce and run cold phenomenon.Slag wool surface after plug is real and valve rod big disk 10 back side interval 2cm, may not exceed valve rod big disk 10, so that the installation of inside and outside baffle plate.
5. adopt the thick asbestos slate of specification 2mm to make internal baffle 5, shear by dotted line institute marked position in accompanying drawing and open, ringwise, be mounted to valve rod big disk 10 back side, the asbestos slate making baffle plate can not be too thin, otherwise not easily fix, also can not be too thick, will be unfavorable for installing.Internal baffle 5 inner ring diameter is greater than valve rod flange outer diameter 5mm, and race diameter is less than heat insulation cylinder 2 internal diameter 2mm.
6. toward internal baffle outer ring, inner ring and clip gap place dismiss infusion and fix, can not gap be left, after two hours, carry out next step operation.
7. on internal baffle 5, stab 3 ~ 4 small through hole, position is wanted suitably and is evenly distributed so that stabilizer injects evenly.Be dismiss infusion in the second thermal-protective coating 3, till aperture place has stabilizer to overflow in small through hole.
8. load dry clean slag wool toward internal baffle 5 surface and fill in real especially valve rod big disk 10 back side near valve rod flange 9 place and heat insulation cylinder 2 inner tube wall place.Slag wool surface is lower than heat insulation cylinder nozzle surface 2cm.
9. make exterior siding 6.Size is with reference to internal baffle 5.
10. repeat the 6th and the 7th step, in the 3rd thermal-protective coating 4, dismiss infusion, till aperture place has stabilizer to overflow.
11. install new rubber valve pocket 8 at heat insulation nozzle, and process terminates.
Because air separation column tower skin cryogenic liquide valve size structure is had nothing in common with each other, when specifically implementing, baffle plate manufactured size comparator valve practical structures size.
In addition to the implementation, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (9)
1. an air separation column tower plastic valve anti-race cold structure, comprise valve heat insulation cylinder, rubber valve pocket, valve rod collet and be fixed on the valve rod big disk on valve rod collet surface by valve rod flange, described valve heat insulation cylinder is set in described valve rod collet outer surface, space between described valve heat insulation cylinder and described valve rod collet forms the first thermal-protective coating, it is characterized in that: also comprise internal baffle and exterior siding, described valve rod big disk is arranged between internal baffle and exterior siding, its both ends of the surface respectively with described in, exterior siding end face is parallel, space between described internal baffle and the first thermal-protective coating forms the second thermal-protective coating, described internal baffle, space between exterior siding and collet forms the 3rd thermal-protective coating, described first, second, insulation medium is equipped with in 3rd thermal-protective coating.
2. air separation column tower plastic valve according to claim 1 anti-race cold structure, is characterized in that: described internal baffle, valve rod big disk, exterior siding are sequentially sleeved on valve heat insulation cylinder and put.
3. air separation column tower plastic valve according to claim 1 anti-race cold structure, it is characterized in that: described inside and outside baffle plate is ring baffle, the difference of the external diameter of its inner ring diameter and described valve rod flange is 5 ~ 10mm, and the difference of the internal diameter of described valve heat insulation cylinder and the race diameter of described inside and outside baffle plate is 1 ~ 2mm.
4. air separation column tower plastic valve according to claim 1 anti-race cold structure, is characterized in that: described first thermal-protective coating is 1 ~ 2cm to the distance at the valve rod big disk back side, and namely the width of the second thermal-protective coating is 1 ~ 2cm.
5. air separation column tower plastic valve according to claim 1 anti-race cold structure, is characterized in that: the insulation medium in described first thermal-protective coating is slag wool.
6. air separation column tower plastic valve according to claim 1 anti-race cold structure, is characterized in that: the insulation medium in described second thermal-protective coating is stabilizer, and the insulation medium in described 3rd thermal-protective coating is slag wool or stabilizer and their combination.
7. air separation column tower plastic valve according to claim 1 anti-race cold structure, is characterized in that: described rubber valve pocket is arranged on valve heat insulation cylinder tube port position.
8. air separation column tower plastic valve according to claim 1 anti-race cold structure, is characterized in that: described inside and outside baffle plate evenly offers small through hole.
9. the air separation column tower plastic valve anti-race cold structure according to any one of claim 1-8, is characterized in that: described inside and outside baffle plate adopts thickness to be the asbestos slate of 2 ~ 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420492792.4U CN204114472U (en) | 2014-08-27 | 2014-08-27 | A kind of air separation column tower plastic valve anti-race cold structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420492792.4U CN204114472U (en) | 2014-08-27 | 2014-08-27 | A kind of air separation column tower plastic valve anti-race cold structure |
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| CN204114472U true CN204114472U (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420492792.4U Active CN204114472U (en) | 2014-08-27 | 2014-08-27 | A kind of air separation column tower plastic valve anti-race cold structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425344A (en) * | 2019-07-21 | 2019-11-08 | 杭州杭氧股份有限公司 | A kind of insulation construction of cold box of air separation unit plate junction antifrost |
| CN110878839A (en) * | 2019-11-20 | 2020-03-13 | 中国科学院广州能源研究所 | High-temperature-resistant valve |
-
2014
- 2014-08-27 CN CN201420492792.4U patent/CN204114472U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425344A (en) * | 2019-07-21 | 2019-11-08 | 杭州杭氧股份有限公司 | A kind of insulation construction of cold box of air separation unit plate junction antifrost |
| CN110878839A (en) * | 2019-11-20 | 2020-03-13 | 中国科学院广州能源研究所 | High-temperature-resistant valve |
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